Maverick: Season 3, Episode 17
Cruise of the Cynthia B. (10 Jan. 1960)
Having been tricked into buying a share of a steamboat instead of the whole boat, Bret and his co-owners sail the boat up the Mississippi to an interested purchaser. Along the way, however, the co-owners start dying one by one.
Director:André De Toth
Writer:R. Wright Campbell