When space mutants from his favorite comic books come to life and threaten all ocean life, 10-year-old Opil must team up with a heroic captain and his mischievous daughter to save the sea.

Opil is a plump, 8-year-old boy. In a desperate attempt to stop him from wolfing down junk food, his mother serves him a special dish: the wish fish. But Opil takes it as a joke and wishes that mutant aliens come to Earth and take away all of the fish from the planet. The following day, the wish is fulfilled...and then some!—anonymous