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Down to Earth is the twenty-eighth episode of Season 4 and the ninety-third episode of Code Lyoko.

Plot[]

The episode opens with Odd, Aelita, Yumi, and Ulrich relaxing in the courtyard. Aelita mentions that Jeremie has been isolating himself from the others after learning how many Replikas there are, and admits to being worried about him. However, Jeremie himself soon arrives in a happy mood and reveals to the others that he has found a way to destroy X.A.N.A. for good. After reviewing Franz Hopper's notes countless times, Jeremie has decided to create his own "Multi-Agent System", the same type of program as the Marabounta, that he will design to seek out and destroy all traces of X.A.N.A. on the internet. Jeremie also reveals that he has developed a program that, if executed just as he is devirtualized, could finally free William from X.A.N.A.'s control and bring him back to Earth.

Excited, the Lyoko Warriors decide to skip lunch and travel to the Factory to try and save William. Meanwhile, William's parents have come to visit Kadic Academy, and the William clone is sent to greet them. However, Mr. and Mrs. Dunbar quickly become suspicious of the clone, whose personality is strikingly different from their son's. In the Digital Sea, Aelita pilots the Skid to the Ice Replika. Once there, Aelita docks the Skid to a tower before Jeremie sends her and Odd to the Siberian Research Facility. Jeremie then notices X.A.N.A. has begun gathering energy from the other Replikas and becomes worried.

On campus, Mr. and Mrs. Dunbar eventually become convinced that the clone is not their real son and visit Mr. Delmas' office to demand answers. Over the course of their argument, Jeremie's multiple lies about William being ill and on vacation with his parents unravel as the real Mr. and Mrs. Dunbar deny ever taking William overseas. On the Replika, William launches an assault on the Skid with the Black Manta and and another Manta so Ulrich and Yumi move in to confront him but without any rushing as they needed to wait for the Jeremie's signal to devirtualize him. Meanwhile, at the Russian base, Odd and Aelita discover that it's now inhabited by a massive legion of robots. As Jeremie hacks a locked door for them, he postulates that X.A.N.A. plans to use the robots to enslave humanity.

As Ulrich clashes with William and Yumi battles the Mantas, the legion of robots is activated and begins advancing on Odd and Aelita. The pair manages to hold them off long enough for Jeremie to unlock the door, and together they flee deeper into the base, searching of the supercomputer. Suddenly, William retreats in the middle of his fight with Ulrich into the ice lake as X.A.N.A. uses the gathered energy to unleash the Kolossus onto the Replika from it. Ulrich then manages to climb onto the Kolossus's arm in an attempt to reach William, who is now perched on the monster's shoulder. As Yumi and Ulrich discuss how to defeat the giant, Jeremie decides to launch his incomplete multi-agent program, which he uses to immobilize the Kolossus by freezing the ice lake.

At the base, Aelita and Odd reach the supercomputer, which is behind another locked door, barring their way and forcing them to defend against the robots once again. After Jeremie unlocks the door, Odd volunteers to hold the robots off with his Shield while Aelita uses a control terminal to input Jeremie's program for freeing William. However, Odd is soon overwhelmed by the robots and is defeated, returning unconsciously to the Skid. Meanwhile, as Ulrich reaches the Kolossus's shoulder, he and William begin battling once again while Yumi circles the Kolossus on her Overwing, waiting for Jeremie's signal to devirtualize William.

As Aelita finishes entering the program, the Kolossus frees itself from Jeremie's multi agent system and manages to devirtualize Yumi. The robots then arrive at the control terminal, forcing Aelita to defend against them. During their sword fight, Ulrich and William fall off the Kolossus and onto the ground, where Ulrich manages to subdue William. Despite the robots, Aelita succeeds in initiating the program to free William, but, on the Replika, William uses his Super Smoke to escape from Ulrich, who is then stepped on and devirtualized by the Kolossus.

Aelita is then defeated by the robots and sent back to the Skid, unconscious. As the Kolossus approaches the Skid tower, Odd is revealed to have woken up and disembarked from the ship as he sneaks up behind William and devirtualizes him. Jeremie's program is a success, and William returns to Earth, being greeted by Yumi and Ulrich in the Scanner Room. However, the Kolossus reaches the Skid, and Aelita wakes up too late to save the ship as the monster attacks. The Skid is ripped from the tower and slides across the ground before blowing up, devirtualizing Aelita just before it falls into the Digital Sea and is utterly destroyed.

Later, on campus, William enters the Dormitory Building and switches places with the Clone. Jeremie then deactivates the tower controlling the Clone, causing it to vanish as the real William convinces his parents he has "not been himself", but that he is back to normal. Later, as William talks with his parents, the Lyoko Warriors convene in the courtyard and discuss the events of the day. William is revealed to not fully understand what happened to him, and Jeremie is confident he will be able to live a normal life. However, despite the fact that X.A.N.A. has lost William as an ally, the Lyoko Warriors have lost the Skid and making new one will take way too much time. No longer able to travel to Replikas, Jeremie puts all his faith into the multi-agent system.

Trivia[]

  • The original French name for this episode is Retour, which translates to Return in English.
    • Both the English and French episode titles are references to William's return to Earth.
    • This episode was erroneously named "Rescue" on Cartoon Network Video.
  • This episode marks the only appearance of the Siberian Robots. This is also the only time in the series where William's mother is seen.
  • This is the last appearance of the Skidbladnir in the original series, due to it being destroyed.
  • This episode marks the second and final appearance of William's father, James Dunbar; his first appearance was in Double Take.
  • Unlike in A Lack of Goodwill, when William is materialized in this episode, he is correctly shown to be wearing the same clothes he had on when he was first virtualized to Lyoko.

Errors[]

  • The markings on Aelita's cheeks are missing when the robots start moving, and again when they start shooting at her and Odd.
  • In the episodes Replika, Bragging Rights, and Cold Sweat, Jeremie stated that when a person is devirtualized on a Replika, the Skid acts as a proxy, and allows them to safely return to Earth. In other words, the Skid is necessary to return home from a Replika. However, at the end of this episode, Odd was still on the Ice Replika after the Skid got destroyed, and thus should not have been able to come back to the real world.
    • It should be noted that in the original script for this episode, Odd was supposed to have been devirtualized by the Kolossus before it destroyed the Skid, thus making this an error when revising the script.
  • After Aelita is devirtualized, when William says "I did a pretty good job, didn't I?", his right sleeve is missing.
  • Sissi's bracelet is missing at first, but it appears immediately afterwards.

Gallery[]


ve Episodes
Pilots "Les enfants" • "Garage Kids"
Prequel "X.A.N.A. Awakens" (Part 1Part 2)
Season 1 "Teddygozilla" • "Seeing Is Believing" • "Holiday in the Fog" • "Log Book" • "Big Bug" • "Cruel Dilemma" • "Image Problem" • "End of Take" • "Satellite" • "The Girl of the Dreams" • "Plagued" • "Swarming Attack" • "Just in Time" • "The Trap" • "Laughing Fit" • "Claustrophobia" • "Amnesia" • "Killer Music" • "Frontier" • "The Robots" • "Zero Gravity Zone" • "Routine" • "Rock Bottom?" • "Ghost Channel" • "Code: Earth" • "False Start"
Season 2 "New Order" • "Uncharted Territory" • "Exploration" • "A Great Day" • "Mister Pück" • "Saint Valentine's Day" • "Final Mix" • "Missing Link" • "The Chips Are Down" • "Marabounta" • "Common Interest" • "Temptation" • "A Bad Turn" • "Attack of the Zombies" • "Ultimatum" • "A Fine Mess" • "X.A.N.A.'s Kiss" • "Vertigo" • "Cold War" • "Déjà Vu" • "Tip-Top Shape" • "Is Anybody Out There?" • "Franz Hopper" • "Contact" • "Revelation" • "The Key"
Season 3 "Straight to Heart" • "Lyoko Minus One" • "Tidal Wave" • "False Lead" • "Aelita" • "The Pretender" • "The Secret" • "Temporary Insanity" • "Sabotage" • "Nobody in Particular" • "Triple Trouble" • "Double Trouble" • "Final Round"
Season 4 "William Returns" • "Double Take" • "Opening Act" • "Wreck Room" • "Skidbladnir" • "Maiden Voyage" • "Crash Course" • "Replika" • "I'd Rather Not Talk About It" • "Hot Shower" • "The Lake" • "Lost at Sea" • "Lab Rat" • "Bragging Rights" • "Dog Day Afternoon" • "A Lack of Goodwill" • "Distant Memory" • "Hard Luck" • "Guided Missile" • "Kadic Bombshell" • "Canine Conundrum" • "A Space Oddity" • "Cousins Once Removed" • "Music to Soothe the Savage Beast" • "Wrong Exposure" • "Bad Connection" • "Cold Sweat" • "Down to Earth" • "Fight to the Finish" • "Echoes"
Evolution "X.A.N.A. 2.0" • "Cortex" • "Spectromania" • "Mrs. Einstein" • "Rivalry" • "Suspicions" • "Countdown" • "Virus" • "How to Fool X.A.N.A." • "The Warrior Awakens" • "Rendezvous" • "Chaos at Kadic" • "Friday the 13th" • "Intrusion" • "The Codeless" • "Confusion" • "An Assured Professional Future" • "Obstinacy" • "The Trap" • "Espionage" • "False Pretenses" • "Mutiny" • "Jeremy's Blues" • "Temporal Paradox" • "Massacre" • "Ultimate Mission"
Movie "Havoc" (cancelled)
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