Mischievous and pampered young Basset Hound Barney is ‘top dog’ in Pat, and daughters Lyn and Michelle’s home, especially since Pat’s husband died last year, but lately, Barney’s been suffering from weakness in his back legs. The girls bring him to Fitzpatrick’s where neurologist Claire Rusbridge identifies an issue with Barney’s neck. Giant Mastiff Tank is brought in to see Noel by Rob and Janet. He’s struggling to walk on both front legs, and missing out playing with the family’s other dogs at home, and Mouse the Miniature Pincher comes to see surgical resident Padraig in this episode’s tale of ‘little and large’.