The UCOS team investigate the 20-year-old murder of Josh Livesey, a young peace protestor, killed at the outskirts of a nuclear base in 1984. Is the killer one of the four secretive friends he camped with, or is the team in danger of exposing a Special Branch cover up?The UCOS team investigate the 20-year-old murder of Josh Livesey, a young peace protestor, killed at the outskirts of a nuclear base in 1984. Is the killer one of the four secretive friends he camped with, or is the team in danger of exposing a Special Branch cover up?