Grieving the loss of his parents, a teenage humpback whale must embrace his destiny and discover his mystical song to save the oceans from a terrible monster.

Brother and sister Paul and Kat are shipped off to spend four months with their super-strict grandmother. They don’t expect to discover their Granny was once a world-class secret agent. But when her old friend turned nemesis has her kidnapped, it’s up to Paul and Kat to team up, gear up, and save the day … spy-style. They’ll have to train like agents, chase down villains, and stop a satellite-powered vaporizer before it destroys their mom’s space station, all before bedtime.