A small, lively terrier is rescued and adopted by a compassionate narrator, whose chapters recount the dog's playful antics, stubbornness, and learning moments as he settles into domestic life. Episodes trace his rambunctious introductions to other animals and people, repeated baths and grooming, spirited travels, athletic exploits, romantic entanglements, friendships, and an incident in which he bites a notable man and later makes amends. The narrative blends affectionate, whimsical description with tender scenes of devotion to his chosen owner and humorous vignettes about canine habits and adventures.