An International submarine race thrusts Rick Striker, an American sub designer and pilot, into the spotlight and world of undersea adventure with sabotage, intrigue and danger. A week before the race begins a freak accident critically injures one of Ricks co-pilots forcing him to make a decision that risks his own daughters life in order to realize his dream of winning the race. During the race several near fatal "incidents" occur that are caused by an unscrupulous racing rival that seriously endanger his sub and crew, including his daughter Margie. His determination to win the race forces his crew to undergo periods of extreme fatigue interrupted by occasions of mortal fear during an exiting never ending battle with the ever present dynamics and hazards in the deep abyssal seas as they seek their goal of fame and fortune at the end of the race.