A young couple's baby daughter wanders away from their camper. Jim and Pete join the sheriff's search party. Joey, Frankie, and Fury also try to locate the little girl before the brewing bad storm blows in.

Aunt Harriet comes to visit the Broken Wheel Ranch. All she finds is dirt, grime, and disorder. WIll Jim, Pete, and the boys survive Aunt Harriet's visit? Princess, Fury's mare, has a colt and they name him Thunder.

Joey sees a car run off the road and goes to help. The two guy's from the car come to the Broken Wheel Ranch to await the doctor. But they are not who they seem to be.

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Joey befriends a handicapped boy Tim Wheeler (Peter Votrian) who's bitter about not being able to walk, run, or play ball like the other boys. Joey and Tim and the guys work on a ham radio project for school.

Joey joins the Boy Scouts of America, but Joey's friend Buzz thinks scouting is kid's stuff. Joey and Fury set out into the woods to show Buzz that scouting can make men out of boys.

Jim takes Joey to go visit an old friend Tom Skobee who runs a logging camp. Tom is being plagued with sabotage. Jim investigates and with the help of Fury, catches the bad guy.

After Pee Wee almost drowns at the local swimming hole, Jim helps Joey and the gang get their Red Cross Junior Lifeguard Certification.

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.

The weather has been very dry and conditions are ripe for wildfires. Ranger Bill Marsh enlists Jim, Pete, and Joey to help keep a watch out. Joey gets to be a lookout up in a fire tower. Packy wants to help out too. Carelessness on the part of a road work crew causes a disaster.

Joey wins a contest and becomes 'Sheriff for a Day'. Little did anyone know that dangerous criminals would visit the town that day. Sheriff Joey, Deputy Freddie, and Fury save the day.

Joey and Freddie send away for a chemistry set. Two mad scientists are born.

Joey wants a car so he and Pee Wee start working on an old beat-up jalopy from the local junk yard. They fix it all up and their friend Chuck 'borrows' the car and wrecks it.

A hobo gets a job as a ranch hand at the Broken Wheel Ranch. Fury gets sick and the hobo, who's really a veterinarian on the run from the law, has to decide whether to help Fury and get caught or just walk away.

Joey, Pete, and Fury go to the carnival to see the Wonder Horse. Two of the carnival hands think they can make a lot of money with Fury so they steal him, but Joey catches them and saves Fury.

Joey and Frankie are playing pirates down by the river. They meet a real pirate (Alan Hale Jr.) with a treasure chest full of silver and gold items. The man turns out to be a thief instead of a pirate. Fury saves Joey and Frankie.

Joey rounds up a baseball team but runs into a snag when one of the youngsters refuses to play unless he can pitch.

Rustlers hide a stolen truck full of cattle in an unsuspecting new neighbor's barn, where police find it, and arrest him. His little girl seeks Joey's help in exposing the real crooks.

A pack of wolves are attacking the herd of wild horses near the Broken Wheel Ranch. Jim and Pete have to run them off before they kill any more horses. Joey wants to adopt a young white colt who was separated from his mother. But Fury has other plans and brings the colt back to the herd and his mother.

Joey gets caught in the middle of a ranchers feud. Mr. Hayes (Francis McDonald) and Mr. Brennan (Paul Burns) used to be friends and partners, but now they're enemies. Jim and Pete work to get them back together. But it takes a special gesture from Joey and Fury.

An outbreak of loco weed growing on the range threatens to kill horses and livestock by poisoning them when they eat it.

Water levels in the valley have been dropping because of poachers trapping beavers for their pelts. Beaver damns help keep the water levels up. Joey and Fury and the Game Warden restock the lake with beavers, returning everything back to its natural state.

Joey befriends an ex-sailor (Mickey Simpson) who left the sea to try his hand at farming. Joey competes in a model airplane club.

When Fury starts behaving strangely, Pete tells Joey it's "Earthquake weather", and some superstitious tales about the Indian "earthquake gods". Jim dismisses such talk, but then several tremors and then a huge, volcanic cataclysm rocks the valley.