Sir Sidney Ruff-Diamond (Sid James) is Queen Victoria's Governor#India in the British India province of Khalabar near the Khyber Pass. The province is defended by the feared #The regiment, who are said to True Scotsman under their kilts. When Private Widdle (Charles Hawtrey (actor born 1914)) is found wearing underpants after an encounter with the warlord Bungdit Din (Bernard Bresslaw), chief of the warlike Burpa tribe, the Qadi#Indian subcontinent of Khalabar (Kenneth Williams) plans to use this information to incite an anti-British rebellion. He aims to dispel the "tough" image of the Devils in Skirts by revealing that contrary to popular belief, they do indeed wear underpants under their kilts.