Delta dog team Stu and Link hold off a violent offender, Ministry for Primary Industries dog Ella sniffs out some high-risk exotic toys and a new recruit impresses everyone at Waikeria Prison.

Police champions Ben and Ox doorstep a dangerous man with a pitchfork and biosecurity dog Ella sniffs out something that shouldn't be crossing the border.

Tauranga Delta dog team Kayne and Yoda track down a serial arsonist, deadly weapons at Spring Hill and DOC dog Yuki sniffs out some Takahe chicks.

Delta dog team Jason and Farris are on the scene of a neighbourhood dispute in Whanganui and drug dogs Oscar and Flynn sniff out trouble at Mt Eden Prison.

There's a busy night ahead for Delta dog team Tony and Cato tracking down offenders in Wellington and there's a display of bad weather and bad manners at Whanganui Prison.

Whanganui delta dog team Jason and Farris sort out a late night family feud and Drug dog Storm finds drugs in a visitor's car at Christchurch Prison.

Police Delta team Ben and Ox track some youths after a series of car break-ins, Customs dog Titan sniffs out drugs in a traveller's shoe and there are cell checks at Christchurch Men's Prison.

Police Delta team Ben and Ox track some youths after a series of car break-ins. Customs dog Titan sniffs out drugs in a travellers shoe and cell checks at Christchurch Men's Prison.

Police Delta team Sue and Hades track a man who has breached his home detention. Corrections team John and Aysa find a get-out-of-jail present at a prison release morning.

Delta dog team Paul and Epic track some car thieves. An ice-cream container full of tinnies is found at Mt Eden Prison and biosecurity dog Jay sniffs out a haul of stuffed goods.

Tauranga Delta dog team Derek and Turk track down wrongdoers on the streets and in the sand hills and Customs drug dog Waldo sniffs out drugs in a pornographic DVD case.

Champion Police dog team Ben and Ox help contain a dangerous offender. Customs drug dog Waldo sniffs out hashish on a Frenchman and Corrections find a load of loot in a car at Spring Hill Prison.

Delta dog team Jason and Farris are hot on the heels of a Bonnie and Clyde duo in Whanganui and Corrections dog Aysa sniffs out drugs at Auckland Prison.