If there's one thing we know to be true, it's that if Stephen Graham is in it, it's probably worth watching.
From Adolescence and Boiling Point to This Is England, the actor has built a reputation for starring in some of the grittiest, most gripping dramas on British television.
And if you're looking for your next thrilling boxset, The Walk-In deserves a spot at the top of your watchlist.
From the director of Broadchurch and Strangers, the five-part British true-crime series tells an astonishing real-life story that feels almost too unbelievable to be true. And it's objectively worth a watch.
What is The Walk-In about?
Now streaming on ITVX, the ITV drama tells the story of how a planned terrorist attack in Britain was stopped before it could happen.
Graham stars as Matthew Collins, a journalist and activist working for anti-racism organisation Hope Not Hate. After he is approached by an anonymous informant, Collins discovers the truth about banned neo-Nazi group, National Action.
Collins is forced to risk everything as he uncovers a chilling extremist plot to murder Labour MP Rosie Cooper – one of the UK's most significant counter-terrorism investigations in recent years.
Who stars in the cast of The Walk-In?
Joining Stephen Graham is a stellar supporting cast.
Andrew Ellis (who previously starred alongside Stephen in This is England) plays the anonymous ‘walk-in’ informant who sets the action in motion. He approaches Collins from inside the banned neo-Nazi group National Action and reveals the shocking truth.
Dean-Charles Chapman appears as Jack Renshaw, a young man who becomes radicalised within National Action and begins plotting a devastating extremist attack.
Leanne Best stars as Collins' wife, who supports him as he navigates the dangerous realities of working against Britain's far-right movement.
Jason Flemyng is Nick Lowles, the chief executive of anti-fascism organisation Hope not Hate, who works closely with Collins throughout the investigation.
Chris Coghill plays Chris Lythgoe, the leader of the extremist group National Action, and Bobby Schofield is Matt Hankinson, another prominent member of the far-right organisation.
Where can I watch The Walk-In?
All five episodes of The Walk-In are available to stream now on ITVX.
