Total Eclipse is the fourth episode of Series 5.
Previous Episode: Ghosts
Next Episode: The Gran Master
St Hopes is in a state of excitement as staff and students witness a rare solar eclipse from the playground. As the sun is eclipsed, everyone watches and is mesmerized by the colorful entrancing spiral which appears on the moon's surface, with only Mrs King missing the action. Suddenly, Frank receives a warning text from Stark and he sees that the spiral is having a hypnotic effect on everyone. He quickly manages to get Carrie and Oscar free from the hypnotism, but is too late to stop Rose being hypnotized.
As Mr Flatley and the St Hopes students run riot around the school and terrorize Mrs King, in a secret base The Grand Master celebrates the success of his spiral and prepares for stage two of his plan. He has kidnapped a man called Arthur Poopsberry, the creator of the spiral, and bribed Poopsberry's ex assistant Egor to help him use the spiral for evil. Via a note that Rose wrote before she was hypnotized, the team trace the spiral back to inventor Poopsberry. Stage two of The Grand Master's plan begins, and the spiral is broadcast on all UK television screens, telling citizens to give up their money to SKUL. Oscar and Carrie pinpoint the source of the transmissions and hurry to The Grand Master's base to stop him. There they find Poopsberry, who tell them that there's still more to The Grand Master's plan.
At 4pm, The Grand Master will transmit the attack spiral, in order to force everyone to form a huge army and invade Belgium. Meanwhile, Frank starts to suspect that the means of reversing the hypnosis might be found in a most unexpected place: Mrs King. Can Frank and the spies unlock the spiral in time to bring Rose back, dehypnotize the nation and stop The Grand Master's plans?