Delta team Ben and Igar search for bike thieves. Biosecurity NZ's Karen and Nitro find a funny package with serious contents. DOC rodent dog team Leona and Bail head out to remote Mangere Island.

Delta team Regan and Taylor search for a stolen car. Customs drug detector team find a contraband concealment from Canada. DOC's Fin and Piki face-off with residents on remote Blumine Island.

Delta team Ben and Igar track a man wanted for assault. Biosecurity NZ's Lushea and Iwi sniff out a farmer's worst nightmare. Auckland Council dog teams search for one of the toughest pests on Earth.