Charlton Heston stars as a hard-bitten captain making his last voyage in command of the U.S.S. Neptune, a nuclear submarine that is sunk in a collision with a Norwegian freighter. The only hope for the forty-one men trapped 1450 feet down is a pair of maverick inventors racing to clear the blocked escape hatch with an experimental submersible.

San Francisco Police Lieutenant Virgil Tibbs is called in to investigate when a liberal street preacher and political candidate is accused of murdering a prostitute.

When the train he is on gets robbed, Link Jones finds himself unwillingly reunited with his old gang. Dock Tobin, the gang's sadistic, half-crazed patriarch, was like a father to Link some twenty years past and welcomes him back. To survive, Link must take up his old ways--his killing ways.

The organization: Virgil Tibbs, the San Francisco homicide lieutenant, helps fight a drug ring and mob infiltration in the San Francisco police force. Sheba, baby: Private eye, Sheba Shayne, is called on to help her father from losing his business to the mob.

A farmer does battle against a ruthless group of men that want to drive him off his land.