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One Piece
Season 15 • Episode 591 • Chopper's Fury! The Master's Inhumane Experiment!
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One Piece Season 15, Episode 591: Chopper's Fury! The Master's Inhumane Experiment!
The giant children fly into a mysterious rage, and Chopper discovers the true reason for their unusual condition! Meanwhile, Zoro, Brook, and Sanji cross paths with a dangerous duo! Watch One Piece Season 15, Episode 591 Chopper's Fury! The Master's Inhumane Experiment! in HD free online. Enjoy high-quality streaming of One Piece Season 15, Episode 591 and share your thoughts in the comments below!
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Episodes
62 episodes
The Straw Hats Stunned! Enter: A Samurai's Horrifying Severed Head!
Luffy gets up close and personal with a torso-less Samurai! Elsewhere, Nami, Sanji, Chopper, and Franky find themselves imprisoned with the pieces of a human face!
24 min
Startling! The Secret of the Island Is Finally Revealed
Luffy makes friends with a Centaur, Franky uses a cola-powered laser to break out of the clink, and Sanji takes a chance on a body-less Samurai!
24 min
Save the Children! The Straw Hats Start to Fight!
Nami’s soft spot for children prompts her to call off the escape and declare war on anyone who makes a kid cry. Meanwhile, Luffy and the gang take a banana boat to the icy side of the island!
24 min
A Swordplay Showdown! Brook Vs. The Mysterious Torso Samurai!
Luffy’s group finds themselves up against a gang of centaurs, Brook battles the torso of a surly samurai, and Captain Smoker encounters someone highly unexpected!
24 min
The Warlord! Trafalgar Law
Nami and Chopper seek a safe exit for the children, Luffy’s group hopes to avoid a perilous plunge into icy waters, and Captain Smoker faces off against Trafalgar Law!
24 min
In a Real Pinch! Luffy Sinks into the Ice-cold Lake!
Luffy’s group takes a deadly plunge into icy waters, and Trafalgar Law uses his unique abilities to rearrange Nami’s group and cast our heroes into chaotic confusion!
24 min
A Collision! Law vs. Vice Admiral Smoker!
Nami and the others are subject to Law's bizarre powers, but have to put the shocking results behind them as they make a break out of the facility. Meanwhile, the battle heats up between Law and the G-5; and the mystery of Punk Hazard deepens!
24 min
Meeting Again After Two Years! Luffy and Law!
Luffy is excited to once again cross paths with Trafalgar Law, but a reunion with his mixed up crew – and the loss of his extra legs – quickly dampens the captain’s enthusiasm!
24 min
The Worst in the World! A Scientist of Terror - Caesar!
While Captain Smoker determines his next move, a very large pirate with alligator legs tells Luffy and the Straw Hats the true story of Punk Hazard’s mysterious transformation!
24 min
History's Strongest Collaboration vs. Glutton of the Sea (II)
While Luffy and his friends enjoy some tasty meat, a powerful creature attacks the dinner party, leading to a showdown with Luffy, Toriko and Goku. The crossover starts on Toriko E99 Run, Strongest Team! Toriko, Luffy, and Goku! (I)
24 min
Chopper's Fury! The Master's Inhumane Experiment!
The giant children fly into a mysterious rage, and Chopper discovers the true reason for their unusual condition! Meanwhile, Zoro, Brook, and Sanji cross paths with a dangerous duo!
24 min
To Annihilate the Straw Hats! Legendary Assassins Descend!
The story of how Trafalgar Law arrived at Punk Hazard is revealed, and the Yeti Cool Brothers set their sights on a showdown with the Straw Hats!
24 min
Save Nami! Luffy's Fight on the Snow-Capped Mountains!
Luffy tries to chase down the Yetti Cool Brothers, but Franky – still trapped in Chopper’s Body – makes his mission extremely difficult. Just when all appears lost, an unexpected ally lends a hand!
24 min
Formed! Luffy and Law's Pirate Alliance!
Luffy agrees to an alliance with Trafalgar Law, but the Straw Hats refuse to leave the island until the children are safe. Meanwhile, the gaseous master unleashes something very deadly!
24 min
Capture M! The Pirate Alliance's Operation Launches!
Zoro, Sanji, and Brook continue their search for the samurai, Trafalgar tries to sneak Chopper into the laboratory, and Luffy boldly challenges the Master!
24 min
On the Verge of Annihilation! A Deadly Monster Comes Flying In!
Luffy’s battle with his old nemesis Smoker is interrupted by the arrival of a terrifying toxic blob – and the evil genius who created the monster!
24 min
An Intense Battle! Caesar Exercises His True Power!
The Straw Hats make a valiant push to capture Caesar Clown - Luffy matches his Armament Haki with Clown's powerful Gas-Gas Fruit powers! The battle turns in favor of the Straw Hats, but underestimating Clown's abilities may have deadly consequences! Meanwhile, Law's plan to infiltrate Clown's facility hits a snag when an unseen guest complicates things!
24 min
The Samurai that Cuts the Fire! Kin'emon of Foxfire!
Trafalgar Law finds trouble in the form of an old acquaintance, Chopper investigates the Master’s lab, and the mysterious Samurai shows what he can do with a full body!
24 min
Shocking! The True Identity of the Mystery Man Vergo!
The Master gathers his young test subjects, shocking secret identities are finally revealed, and the poisonous purple blob continues its march across the island!
24 min
Save the Children! The Master's Evil Hands Close in!
Nami and Usopp get an unexpected helping hand in their fight to save the children, Chopper plots a daring escape attempt, and the Master markets his greatest weapon!
24 min
Shaking Up the New World! Caesar's Horrendous Experiment!
A desperate need for candy leads the children to return to the lab, and Caesar plans to show the world the new and improved version of Smiley!
24 min
The Deadliest Weapon of Mass Destruction in History! Shinokuni!
Luffy and the Straw Hats find themselves pursued by a deadly cloud of purple gas that turns everything living thing in its path into petrified statues of ash!
24 min
Launching the Counter Attack! Luffy and Law's Great Escape!
Law’s got a trick up his sleeve that could mean the difference between life and death. Zoro and company reunite with Nami and Sanji, but can they reach safety before being swallowed by a poisonous cloud?!
24 min
Get to Building R! The Pirate Alliance's Great Advance!
Finally reunited and returned to their proper bodies, the Straw Hats fall in line as Luffy and Law lead the charge to settle the score with Caesar – and save the children!
24 min
Tashigi's Tears! G-5's Desperate Breakthrough Plan!
Caesar hatches a plan to forever silence his enemies, Chopper races through the compound in search of the drugged children, and Tashigi’s men make the ultimate sacrifice!
24 min
The Treacherous Vice Admiral! Demon Bamboo Vergo!
Luffy races toward Caesar in the hopes of delivering a beating, Sanji saves a damsel in distress, and Chopper tries to prevent the children from eating the drugged candy!
24 min
A Fierce Battle Gets Heated! Luffy vs. Caesar!
Sanji and Vergo slug it out in a cloud of toxic gas, Law finds the room that could ruin the New World, and Luffy hopes to bring Caesar’s reign of terror to a brutal end!
24 min
A Mastermind Underground! Doflamingo Makes His Move!
With Law's true ambitions revealed, Doflamingo goes into action in order to protect his criminal operation! Caesar slips away from Luffy leaving him to face off with the frigid Monet, and the rest of the crew face down a menacing dragon!
24 min
Luffy Dies from Exposure?! The Spine-chilling Snow Woman Monet!
Luffy goes down fast after Monet puts a chill into him, and Trafalgar Law makes a desperate attempt to reclaim his heart during an electric battle with Vergo!
24 min
Fists Collide! A Battle of the Two Vice Admirals!
Smoker attacks Vergo for assaulting his men, Luffy meets something strange in the trash heap, and a flashback reveals the true depths of Caesar’s madness!
24 min
A Small Dragon! Momonosuke Appears!
Luffy befriends a dragon that used to be a human boy, and Captain Smoker continues his brutal battle with the villainous Vergo!
24 min
A Deadly Fight in a Blizzard! The Straw Hats vs. the Snow Woman!
Luffy hitches a ride on a dragon, Mocha tries to keep the Master’s candy away from her friends, and Zoro pits his steel against snow in a battle with Monet!
24 min
Showing Off His Techniques! Zoro's Formidable One-Sword Style!
It's Zoro vs. Monet in a duel to the death - or is it? Tashigi comes to lend a hand, and she'll need to bring her full might to compensate for Zoro's weakness! Meanwhile, Mocha is running out of options for keeping the candy away from the children.
24 min
To Save Her Friends! Mocha Runs at the Risk of Her Life!
Chopper, Nami, and Robin watch in horror as Mocha makes a heartbreaking sacrifice in a courageous attempt to save the lives of her friends!
24 min
Brownbeard in Grief! Luffy Lands a Furious Blow!
Brownbeard heroically attempts to expose Caesar as a villain, the horrific truth about Punk Hazard is finally revealed, and Luffy puts the hurt on his gaseous enemy!
24 min
A Surprising Outcome! White Chase vs. Vergo!
Luffy makes Caesar pay for his crimes against the children, and Smoker risks his life for a chance to see Vergo fall in battle!
24 min
Caesar's Defeat! The Powerful Grizzly Magnum!
Law reaches the end of his epic battle with Vergo, and Luffy looks to land a devastating final blow on the murderous gasbag Caesar!
24 min
Raid! An Assassin from Dressrosa!
Word of Luffy and Law’s alliance spreads throughout the world, Chopper and Brook race to stay ahead of the deadly gas, and Joker sends a team to rescue Caesar!
24 min
Running Wild! Invincible General Franky!
The laboratory crumbling around them, and time running out, Luffy, the Straw Hats, the G-5, the children and all the others make a final desperate sprint towards the one exit left off the island - but Joker has one more trick up his sleeve, and a deadly secret kept deep in the island spells doom for everyone!
24 min
A Critical Situation! Punk Hazard Explodes!
As the Straw Hats and company flee the crumbling laboratory, Caesar’s desperate act of vengeance thwarts Joker’s plan to forever silence his enemies!
24 min
Capture Caesar! General Cannon Blast!
Franky continues his battle with Buffalo and Baby 5, Nami uses a mighty gust of wind to save the children from a deadly cloud of gas, and Usopp takes a shot at capturing Caesar!
24 min
A Touching Reunion! Momonosuke and Kin'emon!
A dragon regains his boyish form, a noble warrior once feared dead makes a shocking resurrection, and bitter enemies set aside their differences to enjoy a well-deserved feast!
24 min
It's Time to Say Goodbye! Leaving Punk Hazard!
The weary marines and the rescued children get teary-eyed as they say goodbye to the Straw Hats. Meanwhile, Law enters into treacherous negotiations with Joker!
24 min
The G-5 Wiped Out! Doflamingo's Sudden Attack!
On their way after having set out from Punk Hazard, the Straw Hats find out their next destination - just as a huge wave comes crashing down on the Sunny! But it's rough sailing for the G-5 as well, as Donflamingo - a.k.a. the Joker - arrives on the scene and wreaks havoc!
24 min
Intense! Aokiji vs. Doflamingo!
Aokiji’s intercession saves Smoker and sends Joker off to rethink his strategy, leaving unanswered questions about Aokiji's current status. Meanwhile, the Straw Hats catch their breath as the Sunny makes its way through the rough seas of the New World -- where even a bit of hail portends doom!
24 min
Caesar Goes Missing! The Pirate Alliance Makes a Sortie!
Smooth seas stretch out before the Straw Hats as they leave Punk Hazard far behind -- but while they fear Donflamingo's return and prepare to face him, another foe lies in wait, whose powers could be their downfall!
24 min
Luffy Dies at Sea?! The Pirate Alliance Comes Apart!
Breed has Luffy, Trafalgar, and Chopper firmly in his grasp with his Peto-Peto power! Breed dreams of a world in which he has enslaved all the humans, but Luffy's stubborn persistence and unwillingness to cooperate may have landed him in hot water for the last time!
24 min
A Major Turnaround! Luffy's Angry Iron Fist Strikes!
After Law discovers the secret to Breed’s power, Luffy and his old friend the Kung Fu Dugong give the animal-abusing madman a beasty beat down!
24 min
Startling! The Big News Shakes Up the New World!
The world is in shock from Doflamingo's sudden resignation from the Seven Warlords. In the midst of all this, Law gives him information about the location and conditions for handing over Caesar, but hides his true intent - to destroy the SMILE manufactory. As the rendez-vous draws near, Doflamingo summons his executives and sets his own plan into motion!
24 min
Explore! A Kingdom of Love and Passion: Dressrosa!
Dressrosa! Luffy and the Straw Hats divide into teams and set about their business on this passionate, enchanting island! But here, in the heart of enemy territory, danger lurks around every corner. Luffy and the others encounter a mysterious blind man whose luck has just run out...
24 min
Full of Enthusiasm! The Corrida Colosseum!
Out and about in Dressrosa, Luffy and his team encounter a mysterious and powerful blind gambler - and run into trouble while his shocking powers distract everyone! Meanwhile, a major event in the Colosseum draws huge crowds, all eager to see the amazing prize Doflamingo has for his champion!
24 min
A Dangerous Love! The Dancer Girl: Violet!
Zoro, Sanji, and Kin'emon strike off in search of the thieving fairy who has taken Zoro's sword, but Sanji finds himself mesmerized by the beautiful dancing of a gorgeous Dressrosa woman - with a deadly secret! Meanwhile, the prize of a Devil Fruit derived from Ace's powers draws Luffy and Franky to the Colosseum, but if they want to win the prize, they'll have to face some of Dressrosa's most powerful villains!
24 min
A Formidable, Unknown Warrior! Here Comes Lucy!
Luffy enters the Corrida Colosseum in order to compete for Ace's Flare-Flare Fruit! But with the mightiest warriors of the New World assembled and standing in his way, the competition will not be easy. The first stage of the competition is a battle royal - a free-for-all in which only the mightiest left standing will pass on to the next stage!
24 min
A Pirate Noble! Cavendish!
While the deadly battle of Block A winds down, all the onlookers in the stadium are shocked to discover the secret identity of the winner! Meanwhile, Luffy's cover may be blown as another voice from the past returns; and we find out that the secret plot of the Straw Hats might not be the only covert action taking place in Dressrosa!
24 min
The Fateful Reunion! Bellamy the Hyena!
Luffy meets an unexpected acquaintance from the past, Bellamy, who seems to be up to no good! Meanwhile, Caesar Handover Team encounters a snag when they learn just how dangerous Green Bit is! Meanwhile, on the Sunny, the four who remained to watch the ship get a fright as they discover - they aren't alone!
24 min
A Super Rookie! Bartolomeo the Cannibal!
The battle heats up and the widely despised Bartolomeo takes the ring! But he'll have to contend with both the Prodence Kingdom contingent, and Dressrosa's own local favorite, Bellamy! Meanwhile, watching the battle for Block B from up above, Luffy risks having his cover blown!
24 min
Big Names Duke It Out! The Heated Block B Battle!
Don Chinjao continues to provoke Luffy, hoping to gain revenge against the grandson of his sworn enemy, Garp! But as the argument continues, Luffy risks having his cover blown, and his identity revealed! Meanwhile, the battle in Block B rages as mighty competitors - some favorites of the Colosseum, and other faceless unknowns rising through the ranks - continue to clamor for the chance to move on to the next round!
24 min
A Deadly Blow! The Astonishing King Punch!
The battle for Block B hits a crescendo as King Elizabello II prepares his devastating King Punch! But as the powerful attack becomes imminent, the Prodence Kingdom faction unravels! All that may be pointless, though, as the king's powerful attack will take out all the competitors - or will it?
24 min
The Fishing Fish Strike! Across the Deadly Iron Bridge!
As the handover team approaches Green Bit, they are attacked by the fearsome fish that live off the coast of Dressrosa. But that's the least of their problems as they find the bridge to Green Bit has collapsed! As they gather their wits and plan to cross, they find out that something is living on the island - they're not alone!
24 min
Explore! Fairies' Island - Green Bit!
Zoro tracks the thief who stole his sword - and learns about a danger facing the Straw Hats! Meanwhile, Law, Usopp, and the others arrive at Green Bit only to find it inhabited by strange creatures, and swarming with the Navy soldiers! All this while Sanji learns the mysterious identity of Violet, and realizes he's in deeper trouble than he knew!
24 min
The Unknown World! The Tontatta Kingdom!
All but done for, Sanji is trapped by Violet and her crew when she suddenly changes her mind and mysteriously turns on her own men! Meanwhile, Robin and Usopp come face to face with the Little People known as the Tontatta Tribe and find themselves mesmerized -- and Robin awakens to find herself pinned to ground!
24 min
The Stratagem of the Century! Doflamingo Makes His Move!
Sanji gets in touch with Law in order to share a shocking secret - that could unsettle the Straw Hats’ plans in Dressrosa for good! Meanwhile, Luffy's Block C battle begins, but will his Gum-Gum powers give him away?
24 min