Eight-stone Ghost, a Cane Corso mastiff, is striking terror into the heart of the neighbourhood, and his owners. While his guard dog credentials are impeccable, it is hoped trainers Sean and Kamal can encourage him to become compatible with family life. Meanwhile, newly engaged pair Chelsea and Owen have their hands full with - and their relationship tested by - Chelsea's six chihuahuas and a cavaponchi called Mr Bollinger.

Tim and Chelsey love their bulldog Bobby but feed him so well that he's stopped walking. And can first-time dog owner Natalie get the hang of mega-yapper Milo the mini Dachshund?

Fluffball Dougie is on a final warning with local law enforcement. Can the trainers reform this serial biter? And Sam needs help with her St Bernards - a two dog wrecking crew.

A lockdown cockapoo called Sunny's incessant barking is driving everyone crazy. But what is poor Sunny trying to say? And can trainer Victoria teach Maggie the collie to slow down?

This time at the Academy: a cavapoo that won't walk, an aggressive street dog from Spain, and a pooch that very much doesn't like household cleaning products.

Mum and daughter Kristie and Kirsten's six basset hounds bark a lot. Can a whistle and some magic words bring some control? And French bulldog Ace has separation anxiety.

Great Dane puppy Sid has to learn some manners on his lead - can trainee Sean get his big baby under control? Dawn and Don can't ignore rescue dog Buddy's postie-hating habits.

Grieving Pomeranian Pixie is off her food. Ronnie the bulldog can't stop humping. And with a baby due, Naomi, Joe and Tank want to start family life off on the right paw.