Joey and Pee Wee build a soap box derby car to enter in the local races. Joey's car has the best time in the practice runs. Bobby's dad wants him to win at any cost. So Bobby (Gregory Allen Howard) sneaks over to the Broken Wheel Ranch the night before the race to sabotage Joey's car. The next day Fury tries to stop Joey from racing in the damaged car.
Jim becomes the Deputy Pilot for the Sheriff's Aero Squadron and Joey is enlisted to be the Ground Crew Radio Operator. Pee Wee comes down with acute appendicitis and must be flown to a hospital up north, but problems with the plane make matters worse.
When Pee Wee is picked on by the class bully because of his small size, Joey orders a body building kit to help Pee Wee bulk up. But at the school picnic Pee Wee helps rescue the bully's sister when she falls down a narrow pipe.
A land developer is threatening to pull advertising revenue from the local newspaper where Joey is working. The developer is trying to run an untruthful editorial about a land deal which the towns people are soon to vote on.
A tornado strikes a town about 100 miles from the Broken Wheel Ranch. The Sheriff wants to set up a tornado alarm system amongst the ranchers in the valley. Jim, Pete, Joey and Fury dig a tornado shelter.
On Christmas Eve, Jim and Pete are disappointed that Joey and Pee Wee seem to have lost the Christmas spirit. Suddenly an old prospector arrives at the ranch looking for directions, but 'Uncle Kris' is not who he seems to be.
Jim becomes the area Civil Defense Warden and establishes the Broken Wheel Ranch as headquarters. He enlists all his neighbors to the program, except one rancher, who will live to regret his decision following a flash flood.
When the stresses of running the ranch come to a head, Jim and Pete have an argument resulting in Pete's resignation and Jim letting him go. With the ranch being short staffed and everyone being over worked, Joey has a serious accident.
Joey develops a crush on his school teacher's niece, Susan. An invitation to a picnic with Miss Miller and Susan sounds ideal until Miss Miller invites the Deputy and his younger brother along, who also has taken a liking to Susan..
The County Fair is in town. Joey and Pee Wee want to go see Horace the Trick Horse. But Horace is getting too old to perform and his trainer Sam (Hal K. Dawson) is getting fired. The owner of the Fair wants to send Horace to **gasp** the glue factory. Joey, Fury, and Pee Wee hatch a plan that just might save the day.
A cougar is on the loose killing livestock. A large bounty has been placed on the cougar's head. Joey, Pee Wee, and the boys want to go out and hunt the cougar, but Warden Lane is requiring the boys to get their hunting license after taking a Rifle Safety Course taught by Jim. Andy is in too big a hurry to collect that bounty so he sets out on his own, breaking several safe hunting rules. Joey and Fury take out after him, but will they get to him before the cougar does?
Mr. Malakey (Will Wright) moves into a nearby ranch and damns up the stream to the Broken Wheel Ranch's south pasture. He's mean to everyone but with a little kindness from Jim, Pete, Joey, and Pee Wee, Mr. Malakey softens up.
Joey and Pee Wee go out fishing and meet up with two other fishermen. But they are not who they seem to be. Things go bad when they find out the fishermen are really diamond thieves. The diamond thieves kidnap Pete to help them get through the police roadblock.
Horse thieves are in the area. Joey and Pee Wee see them and follow them, but the horse thieves seem to just disappear. So Joey and Pee Wee set out on an expedition to find them. Their search takes them to an expansive cave hideout. Only Fury knows where they are.
Joey and Pee Wee visit Old Mr. Carty at his gold mine to take a photo of him for a human interest story. A couple of claim jumpers try to kill Mr. Carty with a landslide. Joey and Pee Wee have a plan to help old Mr. Carty get his mine back.