When Penelope gets a bad examination result, she wishes for the school to be destroyed that night, without realising Diana has a meeting there. Before she has a chance to change her wish the genies disappear and arrive back with Murray, the 'Master from the Past'. Bruce meets Diana and likes what he sees, but she is confused when he doesn't recognise her. She doesn't realise they haven't actually met yet. Trying to change her wish and save the school, Penelope and the 'Master from the Past' must chase the sun to make sure they don't change the past and affect the future.