Dom and Kay are two young, black police community support officers who’ve never so much as made as an arrest when they’re co-opted into an off-the-books mission by a maverick detective to infiltrate a notorious drugs gang. Once successfully undercover the duo are forced to act as drug dealers while desperately trying to escape from increasingly perilous situations. With their lives under threat, they resolve to follow a shadowy lead to track down the elusive head of the undercover operation. But will the pair stop bickering for long enough to return to usual beat?