Unbeknown to each other, a husband and wife acquire separate nightclubs in the same London street; however, both clubs are on the brink of bankruptcy.

An archival short of Britain's greatest bandleader, Joe Loss, and his orchestra, including hits such as "Old Ned", "No Regrets", "If I Had A Hammer", "Let There Be Drums", and "(I'm Saying) Farewell To The Dames".

Treasure Island WC2 is Tin Pan Alley where pop songs are launched on their brief but glorious careers.