A college student takes a break and goes out to sea with his father, the captain of a shark-hunting boat. When his inexperience results in an accident in which his father and a crewman are badly injured, he tries to make up for it by rounding up another crew and going back out on the hunt. However, things don't turn out quite the way he planned.

L'histoire vraie du Docteur Corydon M. Wassell durant la Seconde Guerre Mondiale. Il permit à une douzaine de marins blessés de ne pas périr durant le conflit.