The commoner is a happy cockney plumber by the name of Bert Gibbs. Bert comes into contact with the celebrated Russian movie star Ilya Myona. Desperate for publicity and aware that nobility make for good copy, Ilya persuades Bert to pose as her fiancé (with the possibility of persuading him to go through with the marriage if need be). Things are complicated by a pair of anarchic Bolsheviks, one of whom has a daughter named Lenina who knows Bert from his plumber days and is quite in love with him.
With a title like Jack's the Boy, is it any surprise that the star of this breezy quota quickie is British music-hall favorite Jack Hulbert? The star plays the son of a celebrated Scotland Yard detective, who joins the force in hopes of following his father's footsteps.
Tex Robbins, a Texas Ranger, posing as "Wolf" Cassidy, a notorious Chicago gangster, works his way into the rustling gang and hideout of "Three-Star" Henley, but his plans go wrong and he has to fight his way to victory.