Wellington Delta duo Sam and Arlo chase down a bunch of scarpering school vandals, and Customs drug dog Zion busts a package wide open.

Biosecurity's Iko goes bananas over an airport find and Rotorua police team Luke and Skudder hit the trail after a disappearing speed demon.

A dangerous driver has Palmerston North Delta team Brendan and Deja on the run, Customs dog Willow seeks out hard drugs and hard drives, and Corrections pooch Spark beats one search to the punch.

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Corrections dog Wally finds drugs on prison grounds, while Delta dog Hitch heads upstream in search of a violent offender.

Wellington patrol dog Quita chases car thieves, drug hunting Anika makes a discovery on the Customs mail belt, and Corrections canine Wally is on prison grounds.

Palmerston North Delta teams are on the job fighting crime, while Customs pooch Yarra sniffs out a dodgy delivery and cash-hunting Flo-Jo flies high at the airport.

Delta unit Kieran and Vader vamoose after a fleeing driver in Hamilton, drug-seeking Yarra is in pursuit of something unsanitary and Biosecurity's Kelsie produces a fresh find.

In Tauranga, police dog Falcon swoops in on a fugitive driver who has left a trail of destruction. At the airport, dollars dog Flo-Jo cashes up.

Wellington Delta team Regan and Taylor hightail after a violent man absconds from his vehicle.