We meet the adorable pint-sized pups beginning their journeys - the Police R litter, some cute mobility pups, baby biosecurity beagles and Labrador guide dog pups.

It's assessment time for mobility dogs Brooke and Arthur, while biosecurity beagle Luigi faces his first big test.

Which Police pup will make the cut - go-getter Reign, or her handsome brother Ruger? Plus, we find out how guide dog pup chompy Kato is going.

Police pup Reign and her bestie Ink start their training course, mobility dogs Brooke, Blake and Arthur train behind bars and the Biosecurity beagles face their airport assessments.

Biosecurity beagle Iko is itching to get started, we find out what skills mobility dogs Brooke, Blake and Arthur are picking up in prison, and it's decision time for Police pup Raptor.

It's a big day for Police pup, and now dog, Ink; we catch up with mini mobility pups Frankie, Pearl and Ava; and it's assessment day for guide dogs Carley and Clark.

Biosecurity beagles Joplin and Ice test the chemistry with their handlers; mobility dogs Brooke, Blake and Arthur finish their stint in prison; and guide dog Winnie's puppy raiser couldn't be prouder.

Will biosecurity pup Ally make the grade? Plus, there's a change of career for Guide dog Wilson.

We meet boisterous Police pups Yarcov and Yates, Mobility dogs Hank and Max meet their matches, and there's a star performance from guide dog Wistar.

Season Finale: Our Biosecurity beagles graduate and get on with the job; we catch up with Police pups Yarcov and Yates; guide dog Wistar proves she's ready for work; and mobility dogs Hank and Max take up full time jobs in their forever homes.

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?

Season Finale: Will Corrections go-getter Naki level up? We get an update on season 1 Mobility classics Arthur and Brooke, and the final results are in for police pup-stars Apex and Talon!

We meet the adorable pint-sized pups beginning their journeys – the Police R litter, some cute mobility pups, baby biosecurity beagles and Labrador guide dog pups.

Can police pup Uber stay on route, or is he taking the cops for a ride? And meet Biosecurity beagle-cross Neve, the jandal thief.

See what trainee Land Search and Rescue snow pup Echo gets up to when summer kicks in. Plus, we play go home, stay home with some more Mobility pupsters.

We meet a German Sheppard who's one great Dane, there's Mobility mosh pit mayhem, and Corrections pup Willis makes his debut.

Get busy with Police pup Nismo! Plus, tragedy strikes for Mobility favourite Fletcher.

Is fizzy Nizzy ready for his first big training course? It's no brain, no gain for Corrections pup Willis and meet the latest batch of Blind Low Vision wannabe guide dogs.

Police pooch Nizzy hits the ground running. It's assessment time for Mobility pups Cedric and Fletcher. And how will Blind Low Vision poodles fare in their puppy class?

Police pup Nizzy shows what he's made of, Biosecurity Beagles stick their noses exactly where they belong, and what happens when Mobility pup Cedric doesn't stick to his eating plan?

Has prison straightened out party boy Arlo? And will Biosecurity Beagles Nitro and Nemo be ready for matching?

Season Finale: Will Police pup Helo go out with a bang? What's in store for Zola the Poodle? And has Mobility pup Barney grown up enough to be ready to get a job?

Dog Squad Puppy School slides straight into a new season with the prettiest looking snow pup ever, LandSAR trainee Avalanche dog Nala.

Police pup Alfa is put to the test at the Dog Training Centre in Trentham, a brazen careers day for the Corrections B litter and snow pup Nala tests herself on ice.

On Puppy School Police pup Alfa loses his marbles, Corrections pupper Bindi puts in some hard play and with the ski season open trainee LandSAR Avalanche pup Nala takes to the slopes.

Police pup Alfa’s on the trail, LandSAR snow dog Nala’s on the pounce and is Corrections pup Blaze made up of brains or brawn?

Does Police pup Stark bite off more than she can chew, which of the Blind Low Vision brothers gets blindsided, Aiden or Archie? And a new batch of Biosecurity Beagles.

A pupdate with Police pup Stark, check out the acrobatics the Corrections B litter roll into their routine assessment, and which Biosecurity Beagle plays the fool?

Firecracker Police pup Wren blasts onto the scene, test time for the Biosecurity Beagles at the International Mail centre and find out what’s next for Mobility pup Fletcher.

And a tough day at the office for Blind Low Vision dog Archie, Mobility pup Fletcher snuggles his way through his job, and which Corrections pup will come out on top, Bindi or Bart?

Police pup Tahi hits the beach in Gisborne, find out how the Biosecurity ‘O’ Litter are stepping up? And meet eco warrior Marty who’s training to detect Kauri dieback.

Season Final: A very special occasion for Police pups Tahi and Wren, speed dating for the Biosecurity ‘O’ litter and a matching for Kauri Dieback detector Marty.