Natasha decides to leave the US to assist Gordon , who is moving his research to Russia .
Meanwhile , Jeff starts a fire and tries to kill Natasha and Professor Gordon , but Superboy arrives in time to save them and capture Jeff .
Natasha decides to leave the US to assist Professor , who is moving Gordon 's research to Russia .
Meanwhile , Jeff starts a fire and tries to kill Natasha and Professor Gordon , but Superboy arrives in time to save them and capture Jeff .