One morning, a dog named Zeus goes to the pier, spots a dolphin, and becomes fascinated by its movements. Afterwards, he returns home to his owner, Terry Barnett, an aspiring musician, and his son, Jordan, who appears to be taking care of him. Later that morning, Zeus chases a cat and subsequently destroys the outdoor garden of Mary Beth Dunhill, a marine biologist and the Barnetts' next-door neighbor. Terry calms Zeus down and apologizes to Mary Beth, although she is agitated by him.