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. Noel discovers Tank is suffering from severe arthritis and needs radical surgery on both elbows. But he also has problems with slipping knee caps. It’s a labour of love looking after their beloved slobbering baby, nursing him through his operations and tending to his recovery; but Rob and Janet are prepared to do what it takes, with Janet even sleeping downstairs to keep Tank company for weeks on end.