The Dog Academy Season 2 is yet to be announced by Channel 4

Cockapoo Maggie and German shepherd Cody are brought in by their owners Diane and John, who have grown tired of Maggie's diva-like ways and cannot understand why she hates her pooch companion. Meanwhile, muzzled collie Marvin has left owners Laura and Dave at their wits' end. They are concerned by his lunging and nipping and fear he'll eventually bite someone. As trainer Jo begins the delicate process of earning Marvin's trust, there's no knowing how he'll react.

Jack Russell Bertie loves to bark - and brothers Sherlock, Dobbie and Gizmo are only too eager to join the chorus. However, the incessant barking is a cause of worry for husbands Andy and Rich, so they call upon trainers Nanci and Jo to help calm this cacophonous quartet. Plus, a wife seeks help calming her 18-month-old cockapoo Freddie, as his behaviour is terrifying her husband.

Destructive Dalmatian Lupin and owners Kelly and Emilien arrive in desperate need of help. With tens of thousands of pounds of damage done at home, trainer Victoria takes both canine and couple under her wing looking for a solution to stop the carnage. Meanwhile, Jack Russell-cross Mya demonstrates a violent phobia of car windscreen wipers, leaving Nanci and Jo seeking a speedy solution in case it rains on the journey home.

Ferocious cockapoo Bear is driving a wedge between owners Paul and Louise. With their marriage under stress, Victoria and Adam must help tame Bear's aggressive behaviour before it's too late. Eleven-year-old Chihuahua Gina is a pocket rocket with an attitude problem. Because of her penchant for attacking other dogs, mum and son Cindy and Cory have to carry her around in a special zipped-up safety bag. It remains to be seen whether the trainers can teach an old dog new tricks.