Everyone in the console is excited when the extraordinary Dr Nigiri visits them from the virtual TrainBrain Academy to test their minds. Everyone except Riley that is, who thinks the good doctor might not be everything he says he is. Meanwhile Kiki has her hands full trying to nurse a man-eating plant back to life.

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?