A budding graffiti artist and expert slacker, teen Tim Edge (Harry Jarvis) gets more than he bargained for when he convinces his two best friends (Ella-Rae Smith and Alhaji Fofana) to skip a school trip. They stumble into a press conference being held by Lena Eidelhorn (Siobhan Redmond), the mad scientist who is unveiling her latest invention, The Vitalitron. This machine is capable of predicting the time of death of any living creature. When Tim sneaks inside, he discovers he only has two hours left to live. Chased across London by tabloid journalists Tooley and Graves (Seann Walsh and Marek Larwood), Tim and his mates agree on a bucket list that will cram a lifetime into the next two hours. Meanwhile, Lena makes plans to ensure that The Vitalitron's prophecy comes true no matter what...