Lewis & Goliath, two cats living on a small isolated island, have to flee the coming storm to join their master who is teaching them how to fly. Washed away by the sea, they land in the territory of the rats, bloodthirsty pirates who ferociously rule the seven seas. The Duke, their leader, proves to be interested in the two cats' magical techniques. But Lewis & Goliath are not about to take anything lying down and instead, sound the call for revolt!