Nixon and McAllister investigate when the stolen digger turns up at a transport site. Manson's suspicions are proven to be correct, but nobody else knows that Manson's tip-offs are coming from Beech. The arrival of Peter Cavanaugh, an Australian inspector on attachment to the NCIS, sets hearts a-flutter, but Meadows is furious when Manson's liaisons with Beech are revealed. Powell arrests a black teenager on suspicion of shoplifting, but cops a warning from Okaro to tread more carefully with the black community in future. An angry Powell is fair game for Thatcher and Dunbar, who are both seeking to prove that Okaro has it in for his black officers. Best is stunned when Powell tells him that he is gay. (thetvdb.com)