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.