Police dog Hades doesn't give up on the chase for a burglar. Then MPI Labrador Ebony sniffs out something that's just about crawling on the mail belt.

Palmerston North delta team Sam and Jet chase after offenders who broke into a workshop and Corrections team Nick and Ben spearhead a major operation at Rimutaka Prison.

Delta team Paul and Epic track some lads who've been breaking into cars. Drug dog Oscar smells drugs on a prison visitor and MPI team Noeline and Minti find reptiles on the mail belt.