English gunsmith Jonathon Tibbs travels to the American West in the 1880s to sell firearms to the locals. He inadvertently acquires a reputation of quickness on the draw due to his wrist mounted Derringer style weapon. Soon gaining the post of sheriff, he endeavours to clean up the town using what skills he hasβand by multilateral diplomacy.

Kenneth More
as Jonathan Tibbs

Jayne Mansfield
as Kate

Henry Hull
as Major Masters

Bruce Cabot
as Jack

Robert Morley
as Uncle Lucius

William Campbell
as Keeno

Sidney James
as The Drunk

David Horne
as James - His Butler

Ronald Squire
as Toynbee - His Solicitor

Eynon Evans
as Mason - Manager, Jonathan Tibbs & Co.