Phineas and Ferb sat against the tree in their backyard, "So Ferb, what do you want to do today?" Phineas asks. Ferb shurgs. "Hmm... Oh I know! We should build a defensive fort. You know sort like with Thaddeus and Thor, but this time, it is made to keep people out better." Phineas says. "Lets get started." A few minutes later. Phineas and Ferb are standing on the third floor of their project. "Hey, where's Perry?" Phineas asks. "Or for a matter of fact, where's Mom, Dad, and Candace?" Ferb shrugs then says "Mom, Dad, and Candace are at the mall, shopping." "Hello." Scubadave and Isabella said.