Police: Suspect No.1 - Season 4 (2025)

In Grimsby, a vicious mass street brawl leaves innocent victims with serious injuries. Police are thrown into a desperate race against time to find before a suspect flees the country.

A Scunthorpe household is terrorised when five masked men break in and hold them at knifepoint before stealing their car. Detectives find a used vape and a sledgehammer at the scene, which are sent off for forensic analysis, while CCTV footage captures what appears to be a getaway vehicle in the area, and before long they have arrested their first suspect. But it remains to be seen whether he will admit his role in the crime and implicate the others.

A Scunthorpe restaurant worker is stabbed in the neck with a pair of scissors in broad daylight, and while the attacker flees into a residential area, the victim is rushed to hospital with life-threatening injuries. Police discover the victim knew the attacker and soon recover the bloodied scissors from the suspect's house - but as the net closes in, the case takes a surprising turn as witnesses suggest the victim may not have been acting in self-defence.

A household is terrorised at home by five masked men who break in and hold them at knifepoint before stealing their car. Can detectives find the violent gang before they strike again?

Humberside Police are facing a rise in crimes involving knives and offensive weapons. This edition follows three investigations, revealing tactics used to fight a rise in violent crime.

Lone female dog walkers and pedestrians in parkland are traumatised as a man exposes himself to them in broad daylight. But as detectives hunt the sexual predator, he strikes again.