Episode Title:
Ultimatum.
Episode Description:
After X.A.N.A. possesses Principal Delmas and kidnaps Odd and Yumi, he gives Jeremy an ultimatum: deliver Aelita to the Scyphozoa or sacrifice Odd and Yumi. However, Jeremy and Aelita go to Sissi for help after being questioned by the police. Sissi agrees to be temporarily part of the group to help save her father and stop X.A.N.A..
