This film was made in 1939 when London was under threat of the Blitz and the wartime background is prevalent throughout the film. This is most significant in the occupation of George Formby's character 'George Carter', who, despite being accident-prone, has enrolled in the volunteer police force to 'do his bit' for the war effort. This 'have a go' attitude was encouraged by the government and dove-tails perfectly with George's character. Formby gets four really good songs to sing in this film, most notable Ukelele Man with a splendid routine in a music shop to accompany the song. The plot is action-based, with all the other actors playing it straight, and this lends the film the atmosphere of a serious drama when George isn't clowning or singing. This means that you can genuinely feel for George in his danger, and root for him as he becomes an unlikely hero. Splendid fun for fans of wartime films and George's music and comedy.