DC Zain Nadir is certain that his cover has not been blown, and Supt Adam Okaro authorises him to meet drug dealer Joshua Armstrong. The intervention of an armed motorcycle passenger threatens to cut short the entire investigation. PC Harman returns from honeymoon and confides in PC Hemmingway about a storage unit hired by new husband Scott Burnett. Hemmingway finds a bloody glove, fuelling suspicions that he killed his first wife. DS Phil Hunter is furious with his brother for telling Kate Maltby about his daughter Madison.