The Patient is the sixth episode of Series 5.
Previous Episode: The Gran Master
Next Episode: The Crystal of St Helena
Ex - SKUL conman Troy Greek is due to hand over some intel to M.I.9 but, before M.I.9 can reach him, SKUL discover the plan and inject Greek with a deadly poison. Greek is now in a coma, awaiting the arrival of a vaccine and being kept alive by a machine.
When M.I.9 discover that a team of SKUL ninjas are looking out for Greek, they sent him to the St Hopes base to ensure his protection. Frank agrees, thinking the school will be empty, as the kids are due to be away on a camping trip. Unfortunately, having failed to raise enough money to hire a coach, Mr Flatley decides to relocate the camping trip to the St Hopes gym. The spies reassure Frank that all will be okay. After all, the ninjas don't even know where the patient is hidden.
Carrie, exhausted and spooked out after reading the latest Pookie Plummer ghost horror novel, is initially unimpressed by Mr Flatley's attempts to recreate the the great outdoors in St Hopes. However, when the lights go out and the ghost stories begin, Carrie soon finds herself feeling unnerved, and a run in with the legendary Grey Lady of St Hopes pushes her over the edge. Terrified, Carrie tells Rose and Oscar about her ghost encounter, but the team soon realise that the Grey Lady was one of the SKUL ninjas.
Realizing that the ninjas are not only a threat to the patient, but also to their classmates, the spies know they have to stop them. With Carrie feeling increasingly weighed down by her fears, can she battle her demons and prevent the ninjas from reaching the patient - and is the patient really all that he seems?
- Troy Greek is a reference to the Trojan Horse.