Drugs baron Neculai Stenga frightens his girlfriend, Louise, by unexpectedly and violently assaulting a prostitute, as HolbyBlue, the BBC’s exciting new precinct drama, continues. Shocked and afraid, Louise reports the attack to the only police officer she can trust, her ex-boyfriend PC William Jackson. Agreeing to testify against Stenga, Louise is promised police protection in return for her statement.

Knowing Louise holds the key to his future freedom, Stenga arranges a hit on her by one of his henchmen, Steven Price. After distracting the officers protecting her, Price knocks Louise over, nearly killing her and only just missing her young daughter. Angry and frustrated at the danger Louise and her daughter were put in, William loses his head and, without authorisation or evidence, storms into Stenga’s headquarters and “arrests” Price.

Tuesday 15 May
8.00-9.00pm BBC ONE