Kovac goes to a crooked casino outside of Las Vegas. He is allowed to leave the casino, but only to be setup as a scapegoat for a smear campaign against a politician working to get rid of the crooked casino owner.
Sue Farnum inherits a circus, but her dead father’s partner is trying to take it away from her. Roy and Bob Nolan are filming a movie on location at the circus. They and a number of other western movie stars come to Sue’s aid, putting on a show and catching the bad guys.
A radio detective sets out to solve an old murder case, with the help of her sound man and another radio detective. They manage to talk to the people involved in the case, but shortly afterwards the main suspects turn up dead.