Whilst navigating the complexities of grief, Roy must care for his newfound son, contend with a profound personal loss in his and Cleo's life all while his team is called to a Sussex beach when an unidentified male body washes up dead in a barrel. Later, the same morning, Brighton football stadium receives a chilling anonymous demand with an impossible decision. Roy, who happens to be at that very match, now finds himself locked in a frantic race to save hundreds of lives.