With gripping first-hand testimony, the shocking story of the 2018 poisoning of an ex-Russian spy in Salisbury. Featuring unparalleled access to police, doctors, government officials and the military.

Further Novichok casualties cause panic in the community. As the case becomes a murder investigation, how should the UK respond to such blatant Russian aggression? (EP3 of 3)

00:00 Intro
01:35 999 call report
05:00 Woman arrives in A&E
09:14 Russian investigative journalist speaks out
11:56 Scotland Yard and CCTV searched
16:49 The death of Dawn Stugess
21:59 The conspiracy theories and finding the killer
27:20 Evidence found
37:19 Can the crimes be linked?

First shown: 13 May 2026

SUBSCRIBE: https://www.youtube.com/c/Channel4Doc...

About #4Docs:
Welcome to Channel 4 Documentaries, the home of cutting-edge factual content, from the award-winning 24 Hours In Police Custody and Dispatches to provocative and powerful original true stories.

From shocking crimes to ground-breaking investigations, follow detectives unravelling real-life murder cases, step into the shadows of hidden subcultures and witness the shocking realities of romance fraud.

Subscribe now and bring yourself closer to the stories shaping our world.

Check out some of our playlists:

Untold:
UNTOLD | Channel 4 Documentaries

Must-Watch Originals:
Must-Watch Originals | Channel 4 Documenta...

24 Hours In Police Custody:
24 Hours In Police Custody | Channel 4 Doc...

Dispatches:
Dispatches | Channel 4 Documentaries

Merseyside Detectives:
Merseyside Detectives: The Murders Of Ashl...

Love Cheats:
Love Cheats | Full Episodes | Channel 4 Do...

Britain’s Cost Of Living Crisis:
Britain's Cost Of Living Crisis | Channel ...

In Too Deep:
In Too Deep | Channel 4 Documentaries

24 Hours In A&E:
24 Hours In A&E | Channel 4 Documentaries

The Push: Murder On The Cliff:
The Push: Murder On The Cliff | Channel 4 ...

Stream on #Channel4