Following the Manchester Arena bombing, National Action member Jack Renshaw (Dean-Charles Chapman) is pushed to the edge after being arrested for online child sexual offenses. Seeking a "blaze of glory" rather than prison, he reveals a horrific plan to his fellow extremists: he intends to assassinate his local MP, Rosie Cooper.
Terrified by the escalating violence, new recruit Robbie Mullen (Andrew Ellis) reaches out to journalist Matthew Collins (Stephen Graham) under an alias. As Robbie risks everything to prevent a second murder, Collins must navigate the bureaucracy of the police while attempting to keep his informant's identity hidden from the dangerous far-right fanatics. The Walk-In Season 1 - Episode 2
: We see Robbie's moral struggle; while he opposes the murder plot, he still struggles with the racist indoctrination of the group, highlighting the difficulty of unlearning extremist beliefs. As Robbie risks everything to prevent a second
: Reviewers from IMDb and What to Watch praised Chris Coghill for his terrifying portrayal of National Action leader Chris Lythgoe. Cast and Credits Stephen Graham Matthew Collins Andrew Ellis Robbie Mullen Dean-Charles Chapman Jack Renshaw Leanne Best Alison Collins Chris Coghill Chris Lythgoe Jason Flemyng Nick Lowles The Walk-In: Season 1, Episode 2 | Cast and Crew Cast and Credits Stephen Graham Matthew Collins Andrew
: The episode features a distressing sequence where Matthew Collins recalls his own violent past, specifically a brutal attack he instigated on a library full of mothers, many of whom were Black and Asian.