The grand finale of Rat Attack takes place in space. The villainous intergalactic rodents have Pearl held captive on an asteroid. The Scratch Cats, once on the asteroid must use the destructor that Professor Julius has somehow spirited up there to fire rat energy at Washington & Jefferson's flying saucer. Only with the ironic justice of rat being used to fight rat can the cosmic vermin's nefarious scheme for global invasion be stopped.
