The Walk-In plot
'True crime' drama based on the true story of Matthew Collins, member of the 'Hope Not Hate' organization, which campaigns against racism and fascism. He infiltrated the British neo-Nazi movement 'National Action' as a mole, following a neo-Nazi who planned to assassinate the Prime Minister. Collins was forced to flee the UK and hide in the 1990s, only to return years later to start a new life.