Oscar's photo is uploaded onto the internet and is seen by the wrong eyes: the Grand Master's eyes. He sends the world's most notorious agent after Oscar, an agent who has never failed a mission, Agent X. Frank calculates on the computer and estimates that Agent X will be at St Hope's in four hours, so Oscar must leave immediately and never return. Carrie and Rose are devastated - they can't lose Oscar. They persuade Frank to let them find Agent X before he gets to Oscar. The spies start the trail at Oscar's old house. They encounter who they think is Agent X, only to discover that it is not him after all. When they arrive at the next location on the trail, they discover that Agent X has already been there. He is ahead of them. Agent X is much cleverer than they expected, and it looks like he is winning. Oscar is reluctant to tell Rose and Carrie what really happened to his mum, and they suspect he is not telling them everything. How can they stop Agent X from kidnapping Oscar if he won't tell Rose and Carrie the truth?