In the distant future, humanity has explored beyond Earth and colonized both the inner and outer planets of the Solar System. In order to protect the colonies and maintain law and order in the solar system, the Earth Federation Government (EFG) was created. Soon, many settlers started to resent the EFG's and its sphere of influence, straining the relationship between the central government and the colonies.
The Star Sheriffs are enjoying their vacation to a ski resort. There, unbeknown to them, they are being stalked by Jean-Claude, an Outrider who holds a grudge against Colt. Jean-Claude kidnaps April and their friend.
On Planet Laramie, the Star Sheriffs meet a young girl named SnowcoOn Planet Laramie, the Star Sheriffs meet a young girl named Snowcone who sees this as a great chance to live an adventure. She first helps the Star Sheriffs, but then betrays them, and so on.ne who sees this as a great chance to ...
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.
Nemesis has put Jesse Blue in charge of a construction facility on New Wichita. There, the Outriders are making slaves of the townspeople, forcing them to build a new type of attack machine called a Range.