In spite of her refusal of assistance, and her obstinate attempts to get them out of the way, Hop and Tank are still trying to help Dixie Davenport recover her horse, Sequoia, stolen by a burly cowhand named Tex Regan. The boys followed the beautiful young movie star to a bank, and overheard her making an arrangement for a payment of $50,000 to the person presenting a certain letter then in her possession...