Episode Title:
A Fine Mess.
Episode Description:
After a malfunction and a little bug with the regular materialization program, Odd and Yumi are bugged up, ending up in each other's bodies. Even worse, their atoms start splitting after a while due to being devirtualized, even on Lyoko. The gang has to go to Lyoko and fix the problem before Odd and Yumi disintegrate and disappear forever, but it's not easy when X.A.N.A. tries to stop them.
