Having seized a Soviet nuclear submarine, the terrorist groups general Sajid Khan sail to the coasts of California decided to raze Los Angeles with a rain of nuclear missiles. American intelligence services are, however, on alert and the Admiralty Majesty instructs the submarine to intercept the enemy and prevent the threat before it happens the irreparable. The mission is entrusted to the Captain William Arlington, who, though fallen foul of a court martial incident spent at sea, has the necessary qualities of courage and determination to handle such situations.