Invisible Men (S02E01)

DCI Rachel Carey is seconded to Counter Terrorism Command’s mapping department. When her former colleagues DS Flynn and DI Latif bring to her attention the case of a man murdered by invisible assailants, the stakes quickly become deadly. Carey’s investigation brings her into the orbit of hotshot politician Isaac Turner. Something is very wrong, but can she work out what before Britain’s security is irrevocably compromised? And which of her colleagues can she trust? (BBC)