Two gauchos arrive at the ranch planning to force Jim into a rodeo so they can earn enough money to go back to South America. When JIm refuses them, they decide to turn Samson against him, thinking that will do the trick. Samson has been practicing his roping, trying to make Jim proud but when the gauchos put the doubts in his head, Samson begins to wonder if Jim really is a champion cowboy.
John Henry and Jim both say yes to competing in the rodeo, but Jim knows there is more than meets the eye. The Gauchos have already decided they will win, and Jim will have to perform with a watchful eye to make sure the competition stays honest.
Jim is outraged by the methods used by big game hunter Ryan Crose and vows to get him to change. This causes conflict with Hayes, an old friend of Croses's, but also a rupture between Ryan and his sensitive son Dan.
A tribesman by the name of Hemera forces the government to put the ranch under quarantine, but a doctor examines the animals and declares them healthy. Hemera decides, however, that every one of the ranch animals will die. The situation is so bad that Commander Hayes sends Samson away and the three men stand guard twenty-four hours a day.
Jim asks Samson to memorize a poem and he doesn't really have much of a desire to do so. John Henry does his best to explain it's meaning, but Samson really doesn't understand. Then when Commander Hayes and Jim have to travel to the city, some kidnappers arrive. Samson and John Henry must come up with a plan to save a very important man they have kidnapped, and warn Jim and Commander Hayes that they are waiting for the plane...without letting on to the kidnappers that they are aware of the truth!
An old flame comes back into Jim's life, and it's quite a shock to John Henry, Samson, and Jim. Samson begins feeling he is going to be left out, no matter how much Jim tries to convince him otherwise.
John Henry is going through some growing pains. He's taking classes at the University, asking Jim not to call him Indian anymore, snapping at everyone, and suddenly decides to turn the worst piece of land into a farm.
The gang is having a lion problem near the ranch and need to find a way to get rid of them; but they also have another problem: two scientists are digging for artifacts and their workers are growing scared of the lions. Their solution is to kill the lions, and Jim and the gang argue for them not to do that. Meanwhile, Samson learns a hard lesson about families. It's a lesson that took about ten years off Jim's life!