15yr old Tim Edge is a budding graffiti artist and an expert in selfishness. When Tim and his two best friends, Vic and Alf, bunk off from a school trip at the Natural History Museum, they stumble into a Press Conference being held by Lena Eidelhorn, a mad scientist who is unveiling her latest invention, The Vitalitron. The Vitalitron is capable of predicting the time of death …