At Grimsby docks, Sgt Tom Elvidge races to catch up with teenagers suspected of being armed with a knife while trying to steal a moped. With no time to wait for back-up, he chases after them alone. PC Martin Leak pulls over a driver who admits to using cocaine at a party a few weeks ago, but is he telling the whole truth?

Cops pull over the driver of a suspected cloned car, who claims he's just swapped the regs between his two cars because one doesn't have insurance! In Hull, the cops' attention is drawn to a car. The driver claims he's just been giving his friends a ride. But his behaviour around the cops is very strange, and a breath test confirms why.