Ep 25. Down to Earth

The Lyoko Warriors return to Siberia in an attempt to finally free William from Xana's clutches. Using data culled by Aelita from the last teleportation of the youth Jeremy is able to create a program to find their imprisoned friend. But in order to bring him home, our heroes will have to accomplish a multitude of tasks in synchronization-no small feat when also faced with the Kolossus... and an entire army of robots!