The Walk-In is a five-part 2024 British true crime television series dramatising the infiltration of far-right terrorist group National Action, foiling a plot to murder an MP.

Intelligence operatives from MI6 to the CIA share insider stories of spy craft, Cold War campaigns, and coups carried out by covert agents. Intelligence operatives from MI6 to the CIA share insider stories of spy craft, Cold War campaigns, and coups carried out by covert agents.