Ryder and the pups are called to Adventure City to stop Mayor Humdinger from turning the bustling metropolis into a state of chaos.

Percy Schmeiser, a third-generation farmer, gets sued by a corporate giant for allegedly using their patented seeds. With little resources to fight a legal battle, Percy joins forces with up-and-coming attorney Jackson Weaver and environmental activist Rebecca Salcau for a monumental case that leads all the way to the Supreme Court.