Told in flashback form, the film traces the rise and fall of a tough, ambitious Hollywood producer, Jonathan Shields, as seen through the eyes of various acquaintances, including a writer, James Lee Bartlow; a star, Georgia Lorrison; and a director, Fred Amiel. He is a hard-driving, ambitious man who ruthlessly uses everyone on the way to becoming one of Hollywood's top movie makers.
As rustled cattle have mysteriously disappeared, Johnny sends for his friend Hoppy, Hoppy arrives and immediately suspects Dan Slack. Realizing his telegram about Slack was intercepted, he locks up the operator Lafe knowing he can escape. Tailing Lafe he finds a secret entrance to a mine and inside finds the missing cattle. But Slack's men also find him just as the cattle are stampeded through the mine shaft.
Joan Grey is a young pianist that falls for the good manners and nice clothes of a gang of mobsters. She is warned by Mark Hampton, an investigator, that she is associating with gangsters and she is heading for trouble. She refuses to believe him and becomes innocently involved in some robberies and killings.
