A curmudgeon hides a terrible personal loss beneath a cranky and short-tempered exterior while clashing with new neighbors, a boisterous family whose chattiness and habits lead to unexpected friendship.

Mr. Putter is convinced to run in a senior marathon with his neighbor, Mrs. Teaberry, when he learns that second prize is a train set.

To relieve the boredom of a long, hot summer, Mr. Putter and his cat Tabby join their fun-loving neighbor, Mrs. Teaberry, and her mischievous dog Zeke on an adventurous sightseeing boat cruise.

As everyone prepares for Big Lou and Fat Bob's wedding, the peace and tranquility of 44 Scotland Street is disrupted by the arrival of domineering Irene, while Bruce, after being struck by lightning, prepares to leave his creature comforts for the monastic simplicity of Pluscarden Abbey, much to his house sitter's delight.