When Frank Fox is sentenced to Broadmoor for murder, the team reopens the death of his colleague Josh Livesey, killed at a NATO base where the two men and their group were planning a protest twenty years earlier. All the campaigners, when reinterviewed, claim that Josh was killed by the Secret Service, which Brian accepts especially after a film shows that a section of the wire at the base was replaced the night Josh died. Charming Special Branch Officer Greg Johnson admits to Sandra that his people disposed of Josh's body and the murder weapon to avoid publicity, but he denies involvement in the killing. At the same time, secrets amongst the campaigners also come to light, leading to several likely suspects.
—don @ minifie-1