Dr. Duvain convinces Jake Murdock that his mind control drug can make people do any task against their will including murder. After a series of shots of the drug, a person can be given a command which they will obey. Jake Murdock wants Parmalee killed for revenge giving the job to Dr. Duvain. Dr. Duvain starts giving Reese a daily shot to build up its strength and tells him to obey the next order he is given after he is shown a five dollar gold piece. The shots change Reese's personality causing the other rangers to question his mental status. Secondly, other people give or show Reese gold pieces causing him to follow some strange orders adding to their concern. Chad and Parmalee realize Reese needs help but can they determine what to do before Reese kills Parmalee.
—Anonymous