Rex Dynamo is nearing the end of his game, meaning that he will no longer be played and will disappear from the Console. Rex is unaware of his fate but his friends don't have the heart to tell him. Instead they plan a farewell party, and Alexia and Claireparker venture off to get him a suitable leaving gift. Aethelwynne is particularly upset that Rex might be leaving and finds it difficult not to tell him. What will happen to Rex?

Kiki Nova sneaks a plasma ball into the console from her game and the gang embark on a series of games without the Quartermasters' permission. Disaster looms when Riley and Aethelwynne swap bodies after falling into the transporter during a game of cricket. Despite their best efforts, they cannot swap back.

To make it worse, Riley has to take his promotion exams and Aethelwynne is stuck on a difficult level in Swords Of The Ancients. How will they cope having to play as each other? Will they have to spend the rest of their lives trapped in each other's bodies?