S1, E5: With Gates on the run, the anticorruption team comes under pressure to close the case once and for all. Tensions flare between Arnott, Fleming and Hastings, especially when Arnott develops suspicions about just how intimate Fleming was prepared to get with Gates. Meanwhile, Gates still believes he can save his career and marriage, if only he can prove his innocence. Arnott is forced to make some tough decisions about where his loyalties lie, while Fleming and Hastings go all out to catch Gates, leading to a shattering conclusion.