DS Brooks and DS Devlin investigate a particularly heartbreaking case when the body of a 5 year-old boy is discovered in an empty flat. They have a witness in the form of 13 year-old Paige Ward who says she saw a man take Connor into the building, and her friend, 10 year-old Rose Shaw, confirms Paige's story. However, disturbing CCTV footage shows something completely different. Faced with conflicting stories and forensic evidence that is inconclusive, the CPS must decide how best justice is to be served.