Mike and three other survivors share a life raft after a storm capsizes their boats.

An underwater camera holds the key to determining whether a woman's drowning was accidental, as her husband claims, or not.

Mike trains three brothers in the use of scuba gear, unaware that they plan to break a fourth sibling out of Alcatraz.

After discovering a sunken Japanese submarine, the amateur skin diver who found it goes violently berserk.

A small Latin American country calls upon Mike to help defuse a sunken munitions ship set to blow by saboteurs.

Mike trains a pair of frogmen for a rescue mission in which they will rescue their kidnapped president from an ancient fortress.