Life on the front line with police forces across the UK. Officers from Greater Manchester Police's Tornado traffic team are on the trail of an armed robber, Met PCs Marc Hamill and Ross McGorm find themselves chasing a driver who is not even old enough to have a licence, and in Lincolnshire, a drug suspect goes on the run.
Specialist teams from Lincolnshire raid the house of a suspected cocaine dealer, and Met officers crack down on knife crime. In Skegness, a town-centre patrol ends in a dramatic car chase, while Greater Manchester police are on the trail of someone who has plenty to hide.
Tonight's programme focuses on crime in the suburban areas of UK cities, beginning in Barnet, north London, where police are on the trail of an armed suspect as he flees through back gardens. A suspected brothel is raided by officers from Devon and Cornwall looking for illegally trafficked sex workers, and Met officers in Ealing follow up leads of a large cannabis factory in the area.
Officers are on the trail of armed robbers in Manchester, an unusual discovery is made in a bag seized from a fleeing drug suspect in Barnet, Hertfordshire, where a mysteriously abandoned, overturned car is also found. North London police deal with the aftermath of a horrific brawl.
Officers target the home of a suspected drug dealer in west London, and sharp-eyed CCTV operators in the north of the capital give the police some vital information. In Scotland, Dell the drug-sniffing dog takes a keen interest in a suspected dealer's washing machine.