In a town called New Jerusalem, three bandits hold up a bank. After a gun battle with the townspeople, the three robbers retreat into the scorching Arizona desert. There, they happen upon an ill woman stranded with her child. As the mother dies, she begs the men to take care of her infant. The fugitives want to save the baby -- but to do so, they'll have to travel back to New Jerusalem, where they are wanted men.

A traitor is lurking somewhere aboard the USS Carolina, and Lt. Tom Randolph is determined to find the offender. First a revolutionary new piece of technology -- an electric firing device -- is sabotaged. Then one of the cruiser's crew is murdered. In order to catch the killer, the captain locks down the ship. With foreign dignitaries, corporate goons and even Tom's girlfriend, Betty, trapped on the vessel, there is no shortage of suspects.