When Henry and his dog Mudge go with Henry's parents to visit Great-Grandpa Bill in the home with lots of other grandpas, they lead them all on a wonderful adventure.

Mr. Putter's love of toys is almost as strong as his affection for his cat--but are he and she too old to play with a toy airplane?

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.

While enjoying autumn weather and activities, Mr. Putter, realizing how much he misses going to school, takes his cat Tabby, their adventurous neighbor, Mrs. Teaberry, and her cake-loving dog Zeke to "Show and Tell."