With the fate of entire civilisations at risk, the galactic battleground makes for unusual alliances and unexpected passions as two women from very different worlds join forces. When Commodore Rae Jacelon of the Gamma VI space station apprehends the alluring but dangerous Kellen O'Dal, it is the start of an unlikely alliance and a breathtaking attraction. Against all advice, Jacelon decides to trust the mysterious O'Dal, risking her career and her life, and a daring intergalactic romance ensues, set against the backdrop of a space adventure filled with suspense.

Gemma Rowe is a shy math nerd from Sydney, who, despite having an affinity for probability and logic, only just worked out at 28 that she's not actually straight. Not only is she not straight, but she's developed feelings for her best friend, Sarah. Gemma knows the logical thing to do is to get over Sarah. She wants to be in her own happy relationship and not caught up on her straight best friend. But how is she supposed to get over Sarah when she can't figure out who she's attracted to anymore?

Homicide detective Tori Hunter was used to doing things her way. But even after six different partners in seven years, she was not prepared for the hot-tempered Samantha Kennedy. Samantha, on the other hand, was trying to juggle a new job and a demanding boyfriend and now finds herself with an even greater challenge - being partnered with the most difficult detective in the entire squad.

Kim could tell at a glance Angel wasn't the average attractive yet poorly disguised extraterrestrial scout sent to assess Earth's defenses before the inevitable alien invasion. Angel's memory loss cover story? Lame. Robbing a passing ruffian of his shirt to cover her naked body? NOT a good way to avoid attracting attention! As a science fiction geek, Kim felt herself uniquely qualified to watch Angel and thwart her dark mission...once the alien got around to it.

The Valkyrie Kara stood alone against the Ragnarok horde on Earth to ensure that the Asgard race and Valhalla could escape. For 5,000 years she has fought and evaded the Ragnarok race on Earth, just waiting for her people to return. A human woman, Kate, joins her fight, showing as much conviction and valor as any Valkyrie. Their friendship quickly becomes something more as they hold the line on Earth in battle, to herald the return of the Asgard.