Then You Run follows four rebellious London teenagers on a city getaway to Rotterdam.

Tara, Stink, Ruth and Nessi embark on what should have been the perfect summer break which soon spirals into a dark and perilous adventure. When their attempt to take on some of the most dangerous people in Europe doesn't quite go to plan, they find themselves on the run with three kilos of heroin, more questions than answers about Tara's family, and a gang of deadly criminals tracking their every move.

Hunting down Tara, Stink, Ruth and Nessi across Europe is Tara's uncle Reagan. He is a notorious gangster, haunted by his past, who will stop at nothing to track down his missing cache of drugs. But Reagan isn't the only person they should fear - all the while a terrifying, mythical serial killer - known only as 'The Traveller' - draws closer on a collision course with them all...