 Their first mission is aboard the sunken wreck of the SSS "Silverberg", a prison ship for its sole occupant, Cassandra, a computer who can predict the future with 100% accuracy, and she predicts Rimmer is soon to die.Cassandra claims that only Lister, Kryten, Kochanski and the Cat will make it out alive and that all the other prisoners will die (although Rimmer will die first).Though told it is impossible to prevent Cassandra's prediction from coming true Rimmer comes up with a plan.