This is a tale about how the events of one day have such catastrophic consequences on the future. Hudson Bell is a consultant for the police. A former DI, he spends his days helping to find missing children. May and her son go on a road trip to celebrate his birthday; Robert and Nadia buy their dream house by the sea. But as each look to enjoy a new life, none of them can shake off what happened on that fateful day. One of them blames the others and will stop at nothing to seek revenge. One accident and five lives changed forever.

Fifteen-year-old Cappy, steps from his home and disappears without trace. Years later Cappy is reunited with his twin-sister Zoe, only for him to disappear again the following day. All that’s left of him is a number of clues. Hudson and Jez are determined to solve the case, and Cappy isn’t the only teen to have gone missing. Where have all of the missing children gone? Will Hudson and Jez uncover the shocking truth before it’s too late? And will Cappy ever come back home?