 After playing a practical joke on Warden Ackerman, Lister and Rimmer along with Kochanski, Kryten and the Cat are forced to take on the guards led by Warden Ackerman in a game of basketball. When they spike the guards juice with a drug which gives them erections for 7 hours, Lister and Rimmer s punishment is to peal all the potatoes for 2 weeks. Kryten, Kochanski and Cat investigates a derelict spacecraft, where they discover "The time Wand" a time device.