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Tomb of the Sea
Season 1 • Episode 5 • Return to the Underground—Even Deadlier Secrets
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Tomb of the Sea Season 1, Episode 5: Return to the Underground—Even Deadlier Secrets
Li Cu explores alone and uncovers Wu Xie’s secrets. Watch Tomb of the Sea Season 1, Episode 5 Return to the Underground—Even Deadlier Secrets in HD free online. Enjoy high-quality streaming of Tomb of the Sea Season 1, Episode 5 and share your thoughts in the comments below!
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Episodes
53 episodes
Li Cu is Attacked and Kidnapped
Li Cu opens a cursed box and is kidnapped into a deeper mystery.
44 min
Scars Become a Map—Journey to the Desert Begins
Li Cu’s scars form a map—his desert journey begins.
49 min
Arrival at Gutongjing—Uncovering the Underground
In Gutongjing, skeletons match Li Cu’s back—Su Wan is captured.
42 min
Danger in the Underground Palace
Deadly traps awaken in the underground palace.
45 min
Return to the Underground—Even Deadlier Secrets
Li Cu explores alone and uncovers Wu Xie’s secrets.
47 min
Trapped Underground—Fear and Confessions
Spore attacks separate the group—Li Cu finds a coffin pond.
45 min
Reaching the Main Hall—A Monster Awaits
A monster twin lies in the tomb’s main hall.
44 min
Li Cu’s Back Holds the Final Map
Li Cu’s back holds the key to escape and treasure.
47 min
Enemies Beyond the Nine Gates
New enemies strike as Crescent Hotel secrets unravel.
45 min
Rescued Only to Fall into a Trap
The group’s desert rescue may be a deadly trap.
42 min
Poison and Paranoia
Poison spreads—paranoia divides the survivors.
45 min
Wu Xie Falls Ill; Li Cu Saves the Group
Wu Xie falls ill—Li Cu leads the escape.
45 min
Galu’s True Identity Revealed
Galu reveals his deadly true identity.
45 min
Trapped in Gutongjing
Gutongjing ambushes force a retreat into Soviet ruins.
42 min
Monsters and Secrets in Gutongjing
Burrowing monsters and deeper secrets rise.
45 min
The Mystery of the Tapes
Li Cu faces a desert monster in a Soviet base.
44 min
Recordings and Strange Artifacts
A found tape reveals screams and strange experiments.
44 min
Gutongjing Confirmed, Wu Xie and Wang Meng Poisoned
Li Cu opens a gate; Wu Xie and Wang Meng are poisoned.
40 min
Finding the Serum
A mutant saves the team by retrieving the serum.
39 min
Li Cu’s Personality Changes
Li Cu fakes memory loss—new threats emerge.
39 min
A Corpse in the Mail
A corpse in the mail leads to hidden horrors.
40 min
Night Escape from Wu Shan Ju
A night escape reveals Li Cu’s Wu family ties.
40 min
Entrusted with a Mission
Li Cu is entrusted with Wu Xie’s secret mission.
41 min
Zhang Rishan’s Disguise Causes Trouble
Zhang Rishan’s disguise draws dangerous attention.
40 min
A Rift Forms in the Trio
Shen Qiong’s name appears on puppet corpses.
40 min
Speaking Snakes and Sudden Attacks
Snakes speak—and bite—at Giant Wind Express.
38 min
Liang Wan Uncovers the Huo Central Officer
Li Cu finds vanished genius files and key intel.
40 min
Train Encounter & Zhang Rishan in the Subterranean Tomb
On a train, secrets unravel as Rishan enters a tomb.
38 min
Hotel Door Key & Zhang Rishan's Peril
The tomb collapses as Rishan discovers betrayal.
40 min
Subterranean Secrets and Betrayal
A bomb seals Rishan—Li Cu joins a desert crew.
38 min
Entering Gutongjing—Growing Tensions
A shortcut fails—Li Cu leads amid rising tension.
39 min
Firestorm & Loyalty Tested
A firestorm forces the team to confront illusions.
40 min
Approaching the Ancient City & Train Ambush
They escape a trap as train allies are ambushed.
40 min
Wu Xie Returns—Li Cu Battles Inside Gutongjing
Wu Xie returns, and Li Cu faces truth and betrayal.
40 min
Black Snakes & White Dragons—Hierarchies in Nature
Dragons rule the desert—serpent biology is revealed.
40 min
Splintered Team & Explosions Underground
Li Cu’s trap backfires—trust fractures again.
41 min
Wang Family Strikes—Li Cu Captured
Li Cu is tortured by the Wang family.
41 min
Mass Attack & Guerrilla Resistance
A violent desert clash breaks out.
39 min
Cliffside Rescue & Snakematters
Su Wan leaps off a cliff to escape.
40 min
Betrayals Revealed—Li Cu Joins Wang Family
Li Cu joins the Wang clan—and faces moral tests.
37 min
Siege of Gutongjing
Gutongjing erupts into war as factions clash.
40 min
The Golden Treasure Turns Deadly
Greed unleashes venom and death.
40 min
Ancient Legends & Music in the Ruins
The ruins play a deadly melody of the past.
40 min
Training for War—Splitting Paths
The trio splits to train for different fates.
40 min
New Strength, New Divisions
New strengths bring new divisions and suspicions.
40 min
Decrypting Pheromones—Wu Xie’s Setup
Wu Xie’s message warns of false decryption.
39 min
The Computation Department’s Portal Unlocked
Li Cu reaches the core as deadly traps spring.
37 min
Li Cu’s Victory & Secrets Revealed
Li Cu wins—Wu Xie reveals the final truth.
39 min
Liang Wan & Zhang Rishan Escape, Li Cu Finds Wang HQ
Liang Wan escapes—Li Cu locates Wang HQ.
40 min
All-out Espionage—Su Nan vs. Li Cu
Li Cu and Su Nan clash as double agents.
43 min
Wang’s Purge and Nine Gates Uprising
Wang purges traitors—Nine Gates strike back.
41 min
Final Showdown in the Computation Core
Li Cu destroys the computation core—Wu Xie survives.
38 min
Victory—and a New Beginning
Victory comes—Li Cu passes his exam.
43 min