Season Finale: In Rotorua, stunt dog Hayes hits the small screen, big time. In Wellington, Delta dog team Regan and Taylor attend a high stakes job involving a whole lot of smashed windows.

Delta team Comrie and Harlo investigate an aggravated robbery in Gisborne and Customs drug detector team Jodie and Anika find shirts stuffed with an unknown substance.

Delta team Luke and Ice hunt a very fit fleeing driver, Customs drug dog team Kofe and Yara rev up the pressure on drug smugglers and Biosecurity detector dog Koda sniffs out something suspect in Santa's stocking.

Delta team Luke and Ice track down a late night trespasser, Customs drug dog team Ian and Yardie discover a small parcel that packs a hefty punch, and truffle hunting dog team Karen and Indie search for buried treasures.

Delta team Jason and Hitch go looking for a drunk driver who played pinball with his neighbour's car. Customs drug dog team Jodie and Anika find a bedtime story that turns into a nightmare.

Customs dog team Ian and Yardie foil a foil wrapped plot to get drugs into the country and Auckland Council detector team Kerryn and Pip identify a microscopic but deadly pathogen.

Delta team Adam and Moon find a vehicle whose driver failed to stop for Police. Plus, Customs drug dog detector team Ian and Yardie identify a brand new method of illegal drug smuggling.

In Rotorua, it's a midnight marathon - six car thieves versus Delta dog team Luke and Skudder. Plus, Rob and Koda find a potential biosecurity nightmare.

Delta team Regan and Taylor find a written off car and its driver, while Customs drug dog detector team Jo and Rani make a big reveal in a box of smalls.

Delta team Josh and Blue track a man who is clearly up to no good. Meanwhile, Customs drug detector team Teagan and Willow find a serious misdeclaration of misinformation.