We meet police dog wannabe Blue and mobility minis Harper, Cedric & Callie.

Training cranks up for police hopeful Blue, there's swap-a-pup surprises all round for the Mobility fosters and Biosecurity's Luigi, Luna and their Uncle Klaus leave home.

Meet hard-nosed Corrections cutie Hunter, see if Biosecurity's Klaus makes it to the end of his assessment runway and catch up with Mobility's 6-month old softies - Callie, Cedric and Harper.

We go face to snout with the latest police charge, boisterous Brigg. Plus, how will Corrections cub Hunter handle his new handler?

Let pint-sized police critter Talon claw his way to the top as your new favourite, Frankie joins the Mobility posse in prison and Biosecurity puppers are in for some high-speed scent training.

Mobility students Barney, Frankie and Arlo hit the mall for some retail therapy and handler match trials begin for Biosecurity beagles Luigi and Klaus.

Alvis takes part in his first police course, the Mobility hounds get to work in their assessments and Biosecurity matching results are in - will Luigi find his happily ever after?

The Mobility mob bubble up into one canine commune thanks to a worldwide pandemic and will top pup Apex get top marks as serious training starts?

The Mobility mob bubble up into one canine commune thanks to a worldwide pandemic and will top pup Apex get top marks as serious training starts?