Inspired by Ferb's personal anti-gravity device, Phineas thinks it would be fun to suspend trampolines all over Danville. Unfortunately for Candace, she also gets zapped by the anti-gravity device and ends up trying to maintain her composure while floating across the dining room floor in front of Jeremy’s family. Meanwhile, Doofenshmirtz has a recipe for evil that involves his Tell-the-Truth-Inator featuring honest Abe Lincoln.