When two boys try to keep themselves from being bored and make the most of their summer vacation, they create a contraption that can go back through time. However, the contraption falls into the hands of Dr. Heinz Doofenshmirtz, a mad scientist who planet to use the device to go back in time and bring the Spartans into the modern age to help him rule the Tri-State Area. Now the boys along with their best friends have to get the device back, with their pet Platypus, who is secretly an agent for The OWCA (Orginization Without A Cool Acronym). All while the boys sister tries to fulfill her obsession of busting them.
