When Farmer Barnes goes to town, Dumpy the dump truck and Charlie have extra chores, and they must complete them all in time for Dumpy to take Charlie to the school bus.
When Farmer Barnes tells his family that people are giving less to charity, and the children in Africa need toys, they decorate Dumpy the Dumptruck and set off on the Apple Harbor Charity Drive.
Charlie, who is nervous about his first day of school, and Dumpy the Dumptruck, who is nervous about his first construction job, gradually adjust to their new settings after making new friends.