Ten celebrities are about to leave their 21st century lives and everything they know behind to become time travellers. Our ten intrepid travellers will crash into six very different eras of British history and have no idea where – or when – they're going. They will spend a day immersed in each era, living, working, dressing and eating as the ‘lower' classes did whilst attempting to follow orders and fulfil a task set by their superiors. Will they be able to survive history and will they be able to leave their smartphones behind?