A madman hijacks the luxury cruise liner, S.S. Queen, and threatens to blow it up unless a millionaire pays him the the contents of a safe deposit box. The crew regains control of the ship, but the hijacker dies, taking the codes to disarm the bomb with him.
Robert Stack
as Capt. James Morgan
David Hedison
as Dr. Peter Brooks
Ralph Bellamy
as J.L. Dundeen
Bradford Dillman
as Martin Reed
Sorrell Booke
as Robert Dwight
John Randolph
as John Howe
Linden Chiles
as Matthew Evans
Burr DeBenning
as Ted Trevor
Sheila Allen
as Claudine Lennart
Mills Watson
as Jim Greer
Ellen Weston
as Ann Trevor
Francine York
as Betsy Shuster
