An international gymnastics competition comes to St Hope's with potentially disastrous consequences for national security and the Prime Minister. Carrie faces her most difficult mission so far as she is asked to exploit her friendship with her Boldovian pen pal and fellow gymnast Lena Larsson. Carrie must try to find out about Boldovia's cruel regime and what they are planning.

MI High reaches for the stars when the spies are launched into space, with no idea of how to fly the rocket. A SKUL space probe has landed on the moon and MI9 suspects SKUL is using it to spy on the world. The spies must find out exactly what SKUL is up to and put a stop to it.