Class registration is here and Sam wants to get into Jennifer's Advanced Art class. But Malcolm sends a virus into the computers to mess up everyone's schedules and makes sure that he's in every class with Jennifer.
Amp leaves without saying goodbye. The rest of the squad wonders why and tries to investigate. They're shocked at what they find out: Amp is an alien! Literally. With Amp gone, who will replace him?
Yolanda and Malcolm both run for student president. Kilokahn helps Malcolm win using the Skorn virus. Now Principal Pratchett has to make a decision of being the school principal or Yolanda's father.
Malcolm is in danger of going to summer school for all the days that he missed. He asks Kilokahn to switch the anti-virus monster in the school computers into an evil virus monster so that Malcolm can change his school records over to the records of Sam and the gang.
Malcolm and Kilokahn send a virus into all of America's bank accounts and transferring all of the money into Malcolm's. When Elizabeth gets hit by a car, Sam is willing to do anything to get the money for an operation.