The series starts with Phineas and Ferb doing normal (for them) things, until they're sucked into their biggest adventure yet in the three part Ultimate Power special. After that, Doof is killed, so Perry is asigned to the Regurgitator, and Phineas and Ferb move to Jeffton. But, in the two part The Return special, Phineas and Ferb stop Jowser and Van Kleiss, and end up changing the fabric of reality so everything's back the way it was! But Perry still has his blob power from earlier, and that is used later. After defeating Negative Isabella in the Negative Super Flynn-Fletcher Bros! movie, the gang discover that their parents are still alive in the They're Alive! special. In the series finale movie, NSFFB Movie Series Finale Thingy!, the gang once again stops Isabelle and frees the Negati