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

Delta team Regan and Taylor find a written-off car and its driver; customs drug dog detector team Jo and Rani make a big discovery in a small package.

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

Delta team Adam and Moon find a vehicle whose driver failed to stop for police; customs drug dog detector team Ian and Yardie identify a brand new method of illegal drug smuggling.

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

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.