It’s autumn in Big Sky Country, and crash-landed aliens are falling in love! Oversized Montana rancher Mach Halley’s very big Stetson and giant belt buckle are hiding a secret of cosmic proportions: He’s a survivor of a transgalactically prohibited private army of cyborg alien warriors built to kill. But with a long-dormant member of his unit about to be born, he needs a healer—even if it’s a pretty little lady doc who must forget everything she sees. Making a name for herself in rural, large animal veterinary medicine has been tough for Doctor Chien Lun-mei, so she takes a strange midnight call to prove herself—only to discover a secret wilder than any bucking bronc. If she rants about UFOs and ETs, she’ll be laughed out of the county, but this strong, silent cowboy who feels even more out of place than she does touches her in more ways than one. Together they’ll fight to save an alien life, but for Mach to escape a war he never wanted, he’ll have to risk an alien love. On the outskirts of the Big Sky Intergalactic Dating Agency, the Cyborg Cowboys of Carbon County are rounding up earthly pleasures for their forever mates.

It’s autumn in Big Sky Country, and crash-landed aliens are falling in love! Deltas were always the most expendable among the CWBOIs (Custom War Bionic/Organic Impersons), and Delta V was fifth of nothing. But since the crash that left this transgalactically prohibited private army of cyborg alien warriors marooned on Earth, Delta has found some small pleasures—soft dogs, sweet donuts, seducing the neighboring rancher. Wait, what? For the first time in her fifty years, Big Sky Country is feeling small and lonely to Montana rancher Lindy Minervudottir. With the five-year anniversary of her wife’s death looming, she’s not sure if the future matters. But then a futuristic fighter flies into her life. Earth is a small, blue marble in the vastness of space, and two needy hearts are even smaller than quarks at that scale. But with a long-gone enemy closing in, if quantum entanglement and the irresistible force of love can’t bind them together, the world itself hangs in the balance. On the outskirts of the Big Sky Intergalactic Dating Agency, the Cyborg Cowboys of Carbon County are rounding up earthly pleasures for their forever mates.

It’s Christmas in Carbon County, and not a creature is stirring, not even a cyborg… He was never meant to be awakened. In the matrix of genetically and cybernetically enhanced contract killers, he was the Omega—brought out only the last resort, the final answer, the end times. But crash-landing on the planet Dirt made Cosmo just another cowboy, albeit one with a time bomb in his massive body forever set to 00:00:00:01. Vic Ray thought she was so smart. As a reformed black-hat hacker, she cracked every code ever put in front of her. Except the one that explains people. But then she found out about aliens. Turns out, though, Cosmo Halley is worse than any people. At least she doesn’t have to be nice to a killer robot to get what she wants: Off this world. But when an old enemy and a new one join forces to expose the CWBOIs on Earth, Cosmo and Vic will have to figure out what it means to love before everything they know is lost forever. Can the Spirit of Christmas—peace, goodwill, and spiked hot cocoa—teach a cyborg and a misanthrope to believe in a future together?

The cyborg cowboys of Carbon County thought they’d won the day… The Theta shroud designation was always meant to be an outsider—a spy and saboteur lurking on the fringes of the elite cyborg soldiers. So even as he built a personality out of the dust of Diamond Valley, Montana, Troy Lehigh stayed apart from his brothers while they lived and loved. A Theta could never hope for such a bond. His only desire, from the first moment he stole his consciousness from the soulless programming that controlled him, was to destroy the consortium that doomed him to solitude. He would’ve done it too, except his brothers chose love over war and trapped him in their midst. But then, a hundred and fifty years ago, he met a sassy soiled dove in a Montana saloon… Nell Dearly had wandered too far from home and was struggling to survive. But the long-lost farm girl has no idea just how far out she’ll go… The cyborg cowboys of Carbon County have fought for each other, for love, and for Earth itself. But the shroud consortium they escaped never stopped seeking them. Now every star they see from Big Sky Country is in danger, and only a lonely Theta and the saloon girl he kissed once upon a time might save us.