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Cold Sweat

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Cold Sweat is the twenty-seventh episode of Season 4 and the ninety-second episode of Code Lyoko.

Plot

As Yumi walks to campus in the morning, she encounters Milly and Tamiya advertising the latest edition of The Kadic News, the school newspaper. After discovering one of the articles in the paper features a picture of her "secret past", Yumi demands to know who gave them the photo. Based on Tamiya's hints, Yumi correctly deduces their source was Odd, and goes to find him. In the rec room, Odd receives a call from Milly while playing foosball with Ulrich, and learns that Yumi is coming to confront him.

To save himself, Odd convinces Ulrich to promise to take the fall for the prank, despite not knowing what the prank is. Yumi arrives, and it is revealed that the picture is of Yumi as a child playing dress-up, wearing a frilly pink dress and a blonde wig. When Ulrich, honor-bound, tells Yumi he was the one who gave the photo to the paper, she is crushed, lashes out at him, and storms off. While walking through the courtyard, embarrassed, Yumi meets with Jeremie and Aelita, who inform her that they have localized a new Replika, and plan to destroy it that night.

Later, the Skidbladnir arrives at the Replika, revealed to be a copy of the Ice Sector, and Aelita moors the ship to a tower. Jeremie then activates the tower, and after two small arguments between Yumi and Ulrich and then Ulrich and Odd, Jeremie translates Yumi and Odd to the supercomputer hosting the Replika. The pair find themselves near a base in the middle of a violent snowstorm as it is revealed they are at a scientific research outpost somewhere in Siberia.

Yumi and Odd enter the base and begin searching for the supercomputer. Meanwhile, Jeremie detects an activated tower on the Replika, which X.A.N.A. uses to translate William to the base as well. While Ulrich and Aelita disembark from the Skid and travel to the activated tower, X.A.N.A. takes control of the doors in the base and locks Yumi and Odd in a room with William. After a short battle, Odd incapacitate William, and Jeremie manages to bypass X.A.N.A.'s locks, freeing Yumi and Odd and allowing them to continue searching for the supercomputer.

Meanwhile, on the Replika, Aelita and Ulrich are confronted by a Megatank and two Tarantulas as they approach the tower, and a battle ensues. At the base, William regains consciousness and begins trailing Odd and Yumi, who hide in a room containing brains suspended in yellow liquid while they wait for Aelita to deactivate the tower. After defeating the monsters, Aelita enters the tower just as William finds Yumi and Odd. However, instead of deactivating it, Aelita realizes that the tower is controlling William, and thus likely contains useful information on how to break X.A.N.A.'s possession.

As Yumi and Odd struggle against William, Jeremie allows Aelita to peruse the interface in the tower and collect data. After Jeremie finds what he needs, Aelita deactivates the tower, forcing William back to the Replika. Safe, Odd and Yumi recommence their search for the base's supercomputer. However, Jeremie soon detects William is heading for the Skid, and Aelita and Ulrich rush back to protect it. Yumi and Odd locate the supercomputer while Ulrich and Aelita make it to the Skid in time and clash with William.

Together, Aelita and Ulrich quickly defeat William, saving the Skid. However, while Jeremie researches the Russian supercomputer to discover how to effectively destroy it, the Superscan alerts him to the existence of hundred more Replikas as X.A.N.A. consolidates their energy into the Ice Replika. Suddenly, the ground of the Replika begins to shake as a massive new monster appears and walks toward the Skid. Unable to defend against it, Aelita and Ulrich attempt to flee, but are devirtualized almost instantly by the giant.

Deciding to abort the mission, Jeremie brings Yumi and Odd back to the Skid, where they each catch a glimpse of the new monster. Jeremie then remotely pilots the Skid out of the Replika just as the monster attacks, and brings the ship back to Lyoko. Later, the Lyoko Warriors convene in the Lab, where Odd names the new monster "the Kolossus". Jeremie then reveals that they will never be able to destroy all the Replikas X.A.N.A. has created, and that they must change their strategy.

As the group leaves the Factory, Ulrich demands Odd tell Yumi the truth about the photo, but Odd flees as Yumi asks to speak to Ulrich privately. Yumi tells Ulrich that he does not need to pull pranks to get her attention before kissing him on the forehead and departing for her house. However, as she approaches her front gate, Yumi receives a call from Odd, who has had a change of heart and confesses to the photo prank. Yumi then becomes angry at both Odd an Ulrich.

The next day, Milly and Tamiya run another edition of The Kadic News, and it is revealed that Yumi has submitted a compromising photograph of Ulrich and Odd "coming out of the shower" together as revenge. Ulrich, now furious with Odd for starting the drama with Yumi, angrily chases him through the courtyard as the episode ends.

Trivia

  • The original French name for this episode is Sueurs froides.
  • The Kolossus makes its debut in this episode.
  • This episode marks the only time William is translated to Earth as a spectre. 
  • When the Kolossus attempts to attack the departing Skid, it leans against the tower, causing it to slant. This is the only time a tower is seen not perfectly upright.
  • The geographical coordinates Yumi gives for the Siberian base, 63°16′N 143°15′E, correspond almost exactly with Tomtor, a village in the Sakha Republic, Russia.
  • This episode also marks the last time Aelita uses her Angel Wings in the original series.

Gallery

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