National Action insider Robbie Mullen reaches out to Matthew Collins and Hope Not Hate to try to prevent the cuddle of another MP, but he puts himself in danger in doing so.
Forced to flee the UK and go into hiding in the 1990's when he became a mole from within the BNP, Matthew Collins returned to Britain to make a new life for himself.
The drama focuses on Collins and his work to stop the radicalisation of young white men before it begins.
The Walk-In - Series 1, Episode 2 Synopsis and Schedule