Dr. STONE Season 4, Episode 21: Our Dr. Stone

RYUSUI VS. SENKU

Senku and his companions finally set off for America in search of corn. However, a dispute arises between Ryusui and Senku shortly after they depart.

24 min

SCIENCE JOURNEY

Maintaining morale will be critical on the long journey to the Americas. Knowing where on the ocean you are is pretty important, too. The crew of the Perseus discuss.

24 min

Light Trap in the Darkness

The Perseus lands in the Americas. They first head to Northern California in search of yellow dent corn, but discover a lot more than that.

24 min

Dr. X

The search party narrowly escaped enemy machine gun fire. Unfortunately, the respite was short-lived.

24 min

DOCTOR VS. DOCTOR

Tensions rise as Dr. Xeno makes his introductions to the Perseus.

24 min

SCIENCE IS ELEGANT

Stanley orders Luna to infiltrate the Perseus and identify Doctor Taiju. Things go sideways when it turns out to be a little too easy.

24 min

The Two Scientists

Senku had gotten his start in rocket building through an email exchange with Doctor Xeno. Their approaches to science soon diverged.

24 min

LOCK ON

NASA scientist Dr. Xeno attempts to pick off the leader of the Kingdom of Science.

24 min

Light of Science

With Senku having been shot, the Kingdom of Science plots its retaliation against Dr. Xeno.

24 min

Dirty Roads

With Senku still confined to the bed, Chrome's team begins work on the tunnel to Xeno's base.

24 min

Those Who Know the Rules; Those Who Make Them

Ryusui and Senku take to the skies in a science versus science dogfight while Xeno's forces mount a ground counterattack.

24 min

Reunion

Xeno's army attacks and when all seems lost, Chrome and his friends finish the tunnel and capture Xeno.

24 min

Watching the Same Moon

The team head to the source of the petrification beam in South America as they flee from Stanley's ship.

24 min

EARTH RACE

Senku and company must flee from Stanley's ship, but they have to make stops to refuel.

24 min

The Escape

With Stanley's ship hot on their tail, can science help Senku and company escape?

24 min

Medusa Mechanism

The team is going to need a weapon for when Stanley inevitably catches up to them.

24 min

Sickening Yet Beautiful

Senku and his team have lost Stanley for now, but they aren't out of — or rather, in — the woods just yet.

24 min

Diamond Heart

The team discovers a giant pile of petrification devices. They take them apart to see what makes them tick.

24 min

Stone Sanctuary

The team begins making, digging for, and polishing diamonds to replace the burnt-out ones inside the devices.

24 min

What I Once Sought to Destroy

Suika is in charge of making sure Senku's plan works, but her kindness becomes an obstacle.

24 min

Until We Meet Again

With the petrification beam approaching, who will get their hands on the revival fluid?

24 min

Scientist, All Alone

Suika gathers the team's statues, sets up camp and gets to work doing science.

24 min

Whole New World

Suika attempts to create a revival liquid from scratch. Feeling lonely and anxious, she repeatedly fails, but finally manages to revive Senku!! As she revives her friends from the Kingdom of Science one by one and reunites with them for the first time in seven years, Senku discovers a terrifying secret hidden in the petrification device... And the moon landing plan to uncover Whyman's true identity is restarted, involving the entire world!!

24 min

Future Engine

Senku and Dr. Xeno team up to gather the materials needed to make a rocket engine.

24 min

Fire

The crew arrives in Spain, where they collect fluorite, olive oil and some treats.

24 min

The Universe Is Written in the Language of Mathematics

24 min