S1, E5: A young girl is dead - the second pill-related death in recent days. A new batch of toxic pills has hit the market, and the police are struggling to find the source. When the Unit discover a link between the pills and the gang they're investigating, Cartwright agrees it's worth pursuing, but only if it's to further their aims of getting higher up the organisation. No-one wants this more than Ash, but he's equally determined to stop more lethal pills from hitting the streets. As Roach waits to hear news of his foray into the pill business, he's unaware of the net closing around him.