In the distant future humans have spread beyond Earth and colonized planets across the universe, creating a New Frontier of man. In order to protect these new settlers and maintain laws and regulations in the New Frontier, Earth’s Cavalry Command was created. Cavalry Command was in essence a military organization, maintaining an army and fleet of ships to protect the New Frontier. Within Cavalry Command was a unit of special operatives known as Star Sheriffs that functioned as field agents, investigating crimes and plots against the security of the New Frontier. The main foe of Cavalry Command and the Star Sheriffs was a race of non-human creatures known as Vapor Beings (or Outriders) that jumped into our dimension in order to conquer it. They attacked the settlers, destroyed settlements and kidnapped humans in order to mine various metals or crystals from the soil. Outriders were superior to humans in battle technology, possessing a legion of gigantic robots with uncanny firepower against which the space-going fleets of Cavalry Command were no match. In order to have a chance against such supremacy, Cavalry Command developed a prototype ship known as the "Ramrod Equalizer Unit" (or just Ramrod) that had the ability to turn from spaceship into a powerful robot that could fight the Outriders on equal terms.
Jesse Blue returns, and is now on the Outriders' side. He convinces Nemesis to let him be the one to transport the captured Commander Eagle to the Outrider Headquarters.
The Star Sheriffs arrive in a territory outside their jurisdiction, the Kingdom of Jar. The King reluctantly tells them that they do not need help from Cavalry Command anymore, even though they are still under constant attack from the Outriders. Meanwhile, the king's son, Prince Rolland, finds himself engaged in a fight that he is not prepared for.
Saber Rider is called back home by his parents, and April comes along with him. There, they soon discover that not everything is what it seems.Watch Now:Amazon
Colt meets a young school teacher named Robin, who just hates violence. But she soon learns she has no other choice when Outriders attack her little hometown of Tranquility.Watch Now:Amazon
While on pursuit of an Outrider named Razzle, the Star Sheriffs split up. Fireball goes to Palamino Valley, where he ends up surrounded by Outriders, and falls with his car of a steep cliff.Watch Now:Amazon
The Star Sheriffs are invited to Cavalry Command by General Whitehawk. There, they are asked to show their skills to the new recruits. The best recruit there, Jesse Blue, falls in love with April, and tries to impress her, but only embarrasses himself. When he goes too far, he is thrown out of Cavalry Command, and he believes it was all Saber Rider's fault.Watch Now:Amazon
The Outriders, lead by Gattler, have taken over the Alkalite refinery on Planet Alamo. The Star Sheriffs are sent to check things out.
The Star Sheriffs go undercover as bounty hunters for hire to infiltrate Maddox's illegal operations base, and defeat him and his Outrider allies.
When the Star Sheriffs arrive to investigate a destroyed Cavalry Command base, they are attacked by Outriders. One of the Star Sheriffs must go on a maverick mission to defeat them. Using a trick coin, Colt wins the toss against Saber Rider and flies off to battle the enemy, who trap him in a canyon. But, help comes from an unlikely source: a little iguana that Colt has befriended. With the iguana's help, Colt escapes and joins the other Star Sheriffs in defeating the Outriders.
Calibos, one of the Outrider's spies, who has stolen the plans for Ramrod's navigational system, sees an opportunity to travel back to his superior's base by kidnapping children from a nearby school and using them as hostages. Meanwhile, Saber Rider starts a brief romantic relationship with the school teacher, Sincia.Watch Now:Amazon
Jesse Blue teams up with a gang of local desperadoes and plot an attack on Cavalry Command to get his revenge on the Star Sheriffs. He places a bomb aboard the Ramrod unit, not knowing April was the one who was piloting it. When he finds out, he tries everything he can to save his love.
The Star Sheriffs are sent to protect a computer controlled cosmos freighter from Outrider attacks. However, they arrive too late and find the freighter destroyed, and only one survivor: a young girl named Annabelle. Colt soon falls in love with her, but not everything is what it seems.
Outriders have started hunting Wildebeests on Planet Durango. The Star Sheriffs are sent to protect the herds that survived, and Saber Rider manages to jump into the Outrider's dimension, where he comes face to face with Nemesis.Watch Now:Amazon
Nemesis' brain controls the Nth Degree and automatically the entire Outrider planet. The Star Sheriffs arrive on the planet and split up to plant explosives all around the planet. Colt accidentally runs into Jesse Blue who challenges him to a duel. Colt doesn't manage to get out in time and is hurt badly in the explosion. Meanwhile, on Planet Yuma, Nemesis reveals more of his powers to the inhabitants of Planet Yuma.Watch Now:Amazon
The Star Sheriffs encounter a shaman called Castor who, with the help of his magic banjo, helps them stop a herd of wild cybernetic horses who keep stampeding towns on the New Frontier.
King Jared unleashes his ultimate weapon, the Monarch Supreme, in his fight with the Outriders. The Star Sheriffs arrive in time to help him in the fight. Also, Fireball learns more about his father.Watch Now:Amazon
The Star Sheriffs manage to rescue Commander Eagle from the Outrider's ship. Little do they know Jesse Blue's plans have just begun.Watch Now:Amazon
Saber Rider tries convincing an old Baron to abandon his home, the Castle of the Mountain Haze, to protect him from the Outrider's latest weapon, which can make mountains erupt into volcanoes.
April's uncle Wayde is revealed to be a secret agent who has been smuggling information about the new Outrider hideout to Cavalry Command. The Star Sheriffs are sent to help him reach his destination safely.
Gattler is given one last chance to trap the Star Sheriffs by Nemesis. He plans an attack at Cimarron Pass.
Because of Outrider attacks, Commander Eagle orders the evacuation of the Yuma Dam. Everybody follows the orders, except for the chief engineer, who happens to be one of Fireball's former schoolmates.Watch Now:Amazon
Outriders start placing fake gold in the mines of Gila Bend, in order to create riots and start chaos in the once tranquil town. The Star Sheriffs have to stop them.