The Bowery Boys tangle with Scotland Yard, diamond smugglers and a gem-toting canine during an ocean cruise.
Huntz Hall
as Horace Debussy 'Sach' Jones
Stanley Clements
as Stanislaus 'Duke' Coveleskie
Patricia Donahue
as Babs DeWitt
Paul Cavanagh
as Inspector Herbert Saunders
Norma Varden
as Mrs. Smythe-Chumley
David Gorcey
as Chuck
Leonard Penn
as Don Clarke
Eddie LeRoy
as Blinkie
