From a deep-sea reef, two poachers steal some eggs of bamboo shark, a species to which Pup belongs. After helplessly watching the egg-napping, the intrepid little shark decides to search for his potential siblings to save them from the clutches of the merciless robbers, although by now they are on land. Helping him through this unknown territory will be the great white-finned shark Julius, and other inhabitants of the deeps by means of a strange contraption created by inventor octopus Octo. Even a bunch of chickens and a coconut crab will do their part.
