An edition following the work of the firearms squad, with the team responding to reports of a sawn-off shotgun changing hands in the suburbs. When they swoop in, both buyer and seller don't know what's hit them. There's an early start for the team from Operation Reacher, who surprise a suspected dealer while he's trying to put his pants on - and a packet of cocaine falls to the floor in front of them

In Newark, officers Jon and Dan stop a car suspected of being stolen in a keyless theft, but they also discover something unsavoury in one of the suspects' bags. In Radford, knife-crime team officers track down a vehicle suspected of being involved in drug dealing, but the driver manages to give them the slip and Ken receives an earful from the irate passenger

Humber Bridge staff call police to let them know that a car has just passed through the toll stinking of cannabis, and with checks on the car revealing it could be a clone, PC Wade Cruse joins other units at they attempt to hunt down the car. On the M62, the onboard ANPR camera pings up for a car driving without insurance and the officers think the driver is deliberately trying to see if they are onto him

An altercation in a bar leads to a foot chase for officers through Gloucester city centre that is only ended by use of pepper spray, a handy tool for the cops if a calm and reasoned approach doesn't work. A 999 caller reports a burglar stealing radiators from unoccupied houses and hiding them in back gardens nearby

A business owner flags down officers when an erratic man starts climbing on his car. Unusual circumstances allow officers to cut a driver some slack for being honest

A suspect on the run makes a dangerous decision when he finds himself cornered and an unsuspecting driver gets more than she bargained for when she gives an old friend a lift

Part two of two. Scully is kidnapped by the deranged Duane Barry, who plans to hand her over to the aliens who abducted him so he will be spared further tests. Mulder tries to figure out where he is taking her, eventually tracking them down to a mountain top only reachable by cable car. As he heads off in pursuit, the traitorous Krycek reveals his true colours