Sky Showcase Wednesday

Officers attend the bloody aftermath of a machete gang fight in Newcastle, while there is trouble at a city centre kebab shop

A samurai sword attack, the abduction of a dog, a group of vandals, and a domestic dispute give police plenty to deal with in Northumbria

Iris concocts an audacious plan to rescue Joy, involving a dramatic reunion with Cameron, then they are forced to flee with Alfie and Nico

An ex-convict holds Jessica and Michael hostage in the armoury as his sister has been kidnapped by a gang he owes money to, and he refuses to let them go until SWAT finds her

Sam and Kilbride clash when a case involving an arms dealer responsible for the slaughter of ATF agents leads them to a well-connected colonel and friend of Kilbride

The work of British Transport Police's canine units, which help monitor thousands of miles of railway and underground track