It is said that former gagman Clyde Bruckman spent most of his directing days sitting in his canvas chair quietly nursing a hangover. Well, someone must have directed Spring Tonic, and if it was Bruckman (as credited), he certainly sobered up long enough to deliver the goods. Claire Trevor walks out on her fiance Lew Ayres in search of adventure. She gets more than she bargained for when she stumbles upon a gang of bootleggers. Ayres comes to the rescue with the help of a circus troupe. The film was based onMan Eating Tiger, an obscure play by Ben Hecht and Rose Caylor.