Batman Phineas and Robin Ferb!

After Linda and Lawrence get parent-napped an are held captive, Phineas and Ferb decide to stop this from happening to other kids, by fighting crime.

Summary
One night, at the Googaplex Mall, Rodney comes and parent-naps Linda and Lawrence. Phineas, Ferb, and Candace call the police, but it turns out that the police are doing more serious duties (a robbery at the White House). Phineas and Ferb decide to fight crime to stop this from happening to other kids, and become BatPhin, and Ferb became Ferbobin. Phineas and Ferb made costumes, with the help of Fransis the Trustful Buttler (Major Monogram). They decide to build the PhinCave, a secret hideout. After Candace learns about this, she decides to become BatCan. After preparing, they start out defeating simple criminals. Fransis decides to make a list of the villains they defeated and this is what it said:

Dr. Doofenshmirtz, Dr. Lloyd Wexler, Professor Poofenplotz, Buford Van Stomm, Dr. Bloodpudding

They realize the only person who has a major criminal record is Rodne, the person who kidnapped Linda and Lawrence. They started running to the hideout on the PhinMobile, and got caught by the press midway. Roger Doofenshmirtz escorts them into Town Hall, were Isabella Garcia-Shapiro tries to interview them. BatPhin and Ferbobin make a escape by climbing out of the building on a rope. They go back to were the PhinMobile was, and it was gone!!!!

To Be Continued...