The pandemic sparked a puppy boom, many first-time owners facing challenges. ‘12 Puppies and Us’ follows 12 pups and their families in early months. We meet Sage, a Staffordshire Bull Terrier, with the Fianko family learning to handle his energy; Meg the Border Collie training around sheep; and Shelby, a Great Dane, meeting a skeptical dachshund, Mr Cooper.