Teenage layabout Tim Edge (HARRY JARVIS) finds himself in over his head after persuading his two closest friends (ELLA-RAE SMITH and ALHAJI FOFANA) to ditch a school excursion. They accidentally enter the lab of eccentric scientist Lena Eidelhorn (SIOBHAN REDMOND) and uncover her latest creation, The Vitalitron, a device that forecasts the exact moment of death for any living being. Unknowingly becoming part of Lena’s experiment, Tim learns he has a mere two hours left to live. Racing against the clock, Tim and his friends hastily compile a bucket list to experience a lifetime’s worth of adventures in the short time remaining.