Vicky McClure stars as Lana Washington, an ex-military bomb disposal expert and Afghanistan veteran who now works as an explosives officer, or expo, for London's Metropolitan Police. Created by Daniel Brierley and produced by Line of Duty creator Jed Mercurio's company, HTM Television, each six-episode series follows Lana's team through a single bombing campaign across the capital. Series 1 to 3 stream on BritBox in the US.
Is This Series for You?
Fans of High-Stakes, Ticking-Clock Thrillers
Viewers who like their crime drama tense and fast-moving, with bomb scenes that play out almost in real time and a lead character who rarely gets a moment to rest.
One Series, One Bombing Campaign
Each six-episode series follows a single campaign of attacks from the first device to the last, so the show plays best watched in order within each series.
Tense and Occasionally Brutal
Trigger Point includes explosions, terrorism storylines, violence and moderate language, and the show is willing to kill off major characters. British TV Hub’s verdict: a gripping, big-audience thriller carried by Vicky McClure’s committed lead performance.
Where to watch in the US
BritBox
Series 1–3 available · Series 4 US date not yet announced · Subscription required
Watch via BritBox on Prime Video →Streaming availability in the US can change. Check the linked service for the current season and episode selection. Checked October 2026.
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BritBox, Acorn TV and PBS Masterpiece can all be added as Prime Video channels, so every series sits on one watchlist.
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New Viewer's Guide
Series 1 (2022)
Start at the beginning: Series 1 introduces Lana, her team and her family, and each later series builds on what happens to them.
What Is an Expo?
In the show, expos are the Metropolitan Police explosives officers who make suspected devices safe, working alongside Counter Terrorism Command detectives who hunt the people behind each attack.
Series Guide
Series 1
Lana and her partner, Joel Nutkins, are called to a suspected bomb on a London housing estate during a summer heatwave, the first sign of a sophisticated bombing campaign across the capital.
Series 2
Lana is drawn back into active duty when an explosion at a London power station marks the start of a coordinated terrorist campaign, with attacks that grow more ambitious and reach the heart of government.
Series 3
An unusual bomb threat involving an abandoned London taxi turns into a campaign of revenge against people who seem to have nothing in common. Writer Chris Brandon takes over as lead writer from this series.
Series 4
A suspicious lorry travelling through London is the opening move in a major new attack, as Lana and the team come up against a highly organised group of professional mercenaries.
Main Characters and Cast
Vicky McClure
Lana “Wash” Washington — a former army bomb disposal operator and Afghanistan veteran who now works as a Met explosives officer. McClure is also an executive producer on the series.
Adrian Lester
Joel Nutkins — Lana’s partner and fellow expo when the series begins.
Mark Stanley
Thom Youngblood — a detective working the bombing investigations alongside Lana’s team.
Kris Hitchen
John Hudson — a fellow expo on Lana’s bomb disposal team.
Nabil Elouahabi
Hassan “Hass” Rahim — one of the team’s experienced expos.
Eric Shango
Danny Markham — a member of Lana’s bomb disposal team.
Natalie Simpson
DS Helen Morgan — a detective who joins the investigations from Series 2.
Maanuv Thiara
Amar Batra — a detective working the investigations from Series 2.
What Makes the Series Special
Vicky McClure at the Centre
McClure carries every series as Lana, a character whose army past shapes how she does the job. Later series lean further into the toll the work takes on her, giving the action a personal cost.
Suspense in Real Time
Many of the show’s set pieces follow a single device from discovery to the moment it is made safe, so a large part of each episode is spent watching an expo work against the clock.
From Jed Mercurio’s HTM Television
Trigger Point is produced by HTM Television, the production company of Line of Duty creator Jed Mercurio, and it reunites him with Vicky McClure. According to ITV, Series 1 to 3 had been streamed 91 million times and reached more than 20 million viewers before Series 4 launched.
Setting and Filming Locations
London
Trigger Point is set and filmed in London, with each series moving across the capital as Lana’s team responds to threats on housing estates, public buildings and transport.
Frequently Asked Questions
Is Trigger Point based on a true story?
No. The characters and bombing campaigns are fictional, although the series is built around the kind of bomb disposal work carried out by police explosives officers in London.
How many series of Trigger Point are there?
There are four series of six episodes each, 24 episodes in total. Series 4 aired on ITV in the UK in August and September 2026 and is available on ITVX there.
Do I need to watch Trigger Point in order?
Ideally, yes. Each series follows its own bombing campaign, but Lana, her team and her family carry over from series to series, and later stories build on what came before.
Who created Trigger Point?
Daniel Brierley created the series, and ITV credits Chris Brandon as lead writer of Series 3 and 4. It is produced by HTM Television, Jed Mercurio's production company, with Mercurio and Vicky McClure among the executive producers.
Where can I watch Trigger Point in the US?
BritBox has Series 1 to 3 in the US. Series 4 has finished airing in the UK, but a US date on BritBox has not been announced yet.
Is Vicky McClure in Line of Duty?
Yes. She played DS Kate Fleming in Line of Duty, which was created by Jed Mercurio, whose company HTM Television produces Trigger Point.
Where is Trigger Point filmed?
Trigger Point is filmed in London, where the series is set.
Fact-checked and streaming availability checked October 2026. Spot an error or an outdated streaming link? Send a correction via the contact page.
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Series 4 Preview
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