A criminal organization known as OSO specializes in kidnapping high ranking U.S. representatives. Although Steve Austin has already thwarted one of their kidnappings, he is unable to stop them from grabbing William Henry Cameron right from under OSI's nose. OSO demands one million dollars in gold and Oscar Goldman takes the opportunity to try and lure them out into the open. Meanwhile, Steve accompanies Dr. Erica Bergner, who is testing a new method of brain transferal in order to find out where Cameron is being kept.

An American submarine leaves Tierra Del Fuego, and one of its crew has secretly brought aboard a container full of poisonous snakes which escape storage and bite key personnel on the submarine, causing an accident that cripples the vehicle so that it drops to the bottom of the Southern Ocean. Worse still, the snakes are still at large on the submarine and complicate the efforts of the crew to escape the sunken vessel.