It's the 22nd century. Humanity has taken its first steps into the galaxy, and we've found ourselves in a vast playground of alien races, environments, and cultures. As the newest players on the universal stage, though, our position is readily apparent - we're at the bottom of the food chain.   

It's the 22nd Century. The galaxy has opened up to humanity as a hyperactive beehive of stargates and new technologies, and we suddenly find ourselves in a vast playground of different races, environments, and cultures. There's just one catch: we are pretty much at the bottom of the food chain. Enter the Four Horsemen universe, where only a willingness to fight and die for money separates Humans from the majority of the other races. Enter a galaxy not only of mercenaries, but also of Peacemakers, bounty hunters, and even a strung out junkie.

Peacemakers. The Galactic Union's most capable enforcers and resolute negotiators, their name alone elicits fear and awe among the Union's citizenry. Having completed a harrowing confirmation mission, Jessica Francis stands ready to become Earth's first Peacemaker and believes obtaining her commission is a mere formality. However, certain members of the Guild question her ability. Worried that she'll fall back on her mercenary ways, they want Jessica to prove her mettle.

CASPers - Combat Assault Systems, Personal - are the lords of the future battlefield. The massive mechs were created to give humanity an edge against the rest of the mercenary forces in the Galactic Union. Just like today's tanks, though, massive amounts of armor and weaponry just make the CASPers "hard to kill", not "invulnerable". There are things in the galaxy even stronger than the CASPer, and when humans run up against them, it's up to the human inside to figure out a way to snatch victory from the jaws of defeat.

The slaughter is on! Across the galaxy, human mercenaries are being ambushed, and an ever-increasing number of companies aren't returning from their contracts. Someone even appears to be plotting the demise of the premier Four Horsemen companies, and disaster for the other three companies has only been averted by the narrowest of margins. Sansar Enkh, the president of The Golden Horde, knows her company is likely to be next, but has no idea who is behind the attacks, or when they will strike her beloved Horde.

Nigel Shirazi was first in line for the chairmanship of Asbaran Solutions, one of the prominent "Four Horsemen" mercenary companies. First in line...until his drinking and temper caused him to fail out of college and get disinherited by the family. Now he leads the life of a playboy, enjoying a stipend from the family to stay out of the way. But someone is out to get his family, and Nigel is all that stands between the hidden enemy and the destruction of Asbaran Solutions and the Shirazi family.

Unfortunately for him, the secrets of the giant machines appear to have been lost to antiquity. Still, he has to try. After returning from a lucrative contract, he secures a base of operation for his Cavaliers in the Karma system, then he sets off toward the galactic core. It’s something he feels he needs to do by himself, so he leaves his overprotective mentor Hargrave behind. 

Heir to one of the leading "Four Horsemen" mercenary companies, Jim Cartwright is having a bad year. Having failed his high school VOWS tests, he's just learned his mother bankrupted the family company before disappearing, robbing him of his Cavalier birthright. But the Horsemen of eras past were smart - they left a legacy of equipment Jim can use to complete the next contract and resurrect the company.

War has come to the worlds of Humans. The rich planet of Tau-Rietzke, however, is far from Earth and the Mercenary Guild’s invasion, and its alien-registered mercenary companies are a safe haven for humans on the run. Organizations like the Midnight Sun Free Company. Having just completed another successful mission and taken possession of three Raknars, it was party time for Saisho Branco and the Midnight Sun personnel, and they were enjoying a little down time...until the war spilled over into their corner of the galaxy and two competing organizations showed up to steal the Raknars.

The plot by the Galactic Union’s Mercenary Guild against the Four Horsemen has culminated in an invasion of Earth. Faced with an overwhelming force, the human mercs had no choice. They’ve fled, leaving Sansar Enkh to go to the Mercenary Guild headquarters on Capital Planet to stand trial for humanity. On the run, Jim Cartwright and Nigel Shirazi have travelled to the Winged Hussars’ secret base of New Warsaw, in an effort to convince Alexis Cromwell to join the fight, while the other mercenaries who escaped the fall of Earth have gone to the perceived safe haven of Karma.

They couldn’t afford a ship or a fleet...and now they have a whole system to defend! Harmon Tomeral, along with friends Clip, Zerith, and the artificial intelligence Jayneen, were heroes. They’d brought back the battlecruiser Salvage Title from an unknown system and had defeated the alien Squilla and saved their home system of Tretrayon, not once, but twice. But now they have a system of their own, and the Bith are about to open it up to the galaxy at large.

Harmon Tomeral wanted nothing more than to go to space. Sent to an orphanage when his parents were killed in a sandstorm, the odds were stacked against him. Despite that, he made it to the academy and graduated in the top 10 percent of his class...only to find out the fleet did what it wanted, regardless of regulations, and he came from the wrong planet. He didn’t give up his dream, though, because where there’s a will, there’s a loophole, and Harmon and his friends found their loophole in the Top Fleet Marine competition - the winner would get 100,000 credits....

They couldn’t afford a ship, much less the cost of registering one...and now they need an entire fleet! Harmon Tomeral, along with friends Clip, Zerith, and the artificial intelligence Jayneen, were heroes. Having brought back the battlecruiser Salvage Title from an unknown system, they defeated the alien Squilla and saved their home system of Tretrayon, although they lost the computer holding Jayneen in the battle. But the Squilla are coming back. And, not only are they coming, they have also recruited the alien Krift to help them destroy the Tretrayon system.

Peacemakers. The Galactic Union's most capable enforcers and resolute negotiators, their name alone elicits fear and awe among the Union's citizenry. Except for Jessica Francis. Not only is she the newest Peacemaker, Jessica is also the first Human Peacemaker, and she commands the respect of few, both inside and outside the Peacemaker's Guild. No one believes humanity is ready to take on the mantle of being a Peacemaker, and Jessica is stuck flying a desk. That is, until a species-induction mission comes along, and she is in the right time and place to get assigned to it. 

The Omega War is in full swing. Earth has fallen to General Peepo’s army, and the surviving human mercenaries have taken refuge at the hidden Winged Hussars’ base in New Warsaw. As humanity begins to think about how to recover the planet, one thing is obvious - more powerful weapons of war will be needed in the effort. One of the keys to recapturing Earth will be the Raknar of Cartwright’s Cavaliers, but the power sources of many of the giant mecha have become unusable over the course of history.