The video of Chefo's bucks night finds its way into Kate's hands and she is humiliated by what she finds on it. The HMAS Hammersley comes across an unexploded sea mine and Spider manages to save the life of a boy who was near the mine, but have Spider's days in the navy come to an end?

The crew pursues a distraught father who has kidnapped his own children. Then, while searching a crocodile-infested swamp for the missing family, the crew discovers a badly mauled fisherman.