A long-awaited forensic breakthrough gives Detective Steve Wilkins and his team the ammunition they need to finally arrest and prosecute John Cooper.

Cast: Luke Evans, Keith Allen, Caroline Berry, Oliver Ryan, Alexandria Riley, Charles Dale, David Fynn, Steve Meo, Richard Corgan, Kyle Lima, Rhodri Evan, Steffan Cennydd, Owen Teale, Ian Saynor, Ioan Hefin