In the conclusion of a two-part story, Inspector Erskine (Efrem Zimbalist Jr.) steps up his search for kidnap victim Bob Griswold (Dave Macklin). Meanwhile, Bob's ex-convict father Max (Arthur Hill) reluctantly launches the final stage of an elaborate robbery that will net the kidnapper a cool three million dollars. A wild seagoing chase caps this nail-biting suspenser. ~ Hal Erickson, Rovi