False Start

S1, E26: Aelita has been brought to life with resounding success and now the time to destroy Xana has come! But when Jeremy pulls the plug, Aélita faints, much to their surprise. The destruction of the super-computer is put on hold, and, following a short inquiry, Jeremy discovers much to his dismay that Aelita has been infected with a virus that binds her to Xana! If Xana were to be destroyed, Aelita would certainly be destroyed along with him ...