Hybrid Servius thinks he has an easy mission coming up. Going undercover on a luxury cruise ship to investigate smuggling isn’t exactly hard duty. All that changes when he meets the sexy but secretive Nicole. She’s up to something, and he needs to find out what. The fact that her curvy body is calling to his hybrid genes is just a nice bonus. Nicole isn’t interested in distractions, such as a certain muscular hybrid. She’s on that ship to save her imprisoned brother, and she’ll do what it takes. Servius and Nicole think their main challenge will be keeping their focus and their hands off each other, but when pirates attack the ship, the two must work together to make it out alive.

Cyrus enjoys his job training other hybrids. When Titus orders him off training to escort a government auditor around, he isn’t pleased. With Luna Lodge targeted by so many foes, producing a new generation of skilled hybrids is vital to their future. It’s more important than playing tour guide to some pencil pusher. April hopes her assessment of Luna Lodge for the US government will fast-forward her career. She just didn’t count on an amorous and arrogant general, a bigoted senator, and her attractive escort: the hunky Cyrus. As the two spend more time around one other, they can’t deny the call of their bodies and souls. Despite their growing passion, April still has a job to do, and that involves figuring out if Luna Lodge is a risk. When she’s caught up in a threat to the Lodge, the bravery and desire of one hybrid might not be enough to save both the woman he loves and his fellow hybrids.

Hybrid Kyros is dead. At least that's what the world believes. In truth, he's on a secret mission to keep his people safe. It’s been tough, but he’s been able to put aside his own concerns and concentrate on the mission. Then a sexy new school teacher shows up and shifts his focus to her instead of the mission. Jasmine Moore is looking forward to turning a new page in her life. After spending several years teaching at a prep school, she's excited to teach pupils who are excited about learning. She never expected to run into a handsome and mysterious hybrid who makes her heart race and knees weak. Duty and passion collide when Kyros draws Jasmine into his secret mission, but lust won’t protect the couple from the sinister dangers threatening Luna Lodge.

The cauldron of tension at Luna Lodge is threatening to boil over. With distrust mounting between the military and the hybrids, Cato is forced to walk a tightrope between the two factions, or risk the situation exploding into violent disaster. His balancing act is threatened by the presence of the distractingly attractive Staff Sergeant Wendy Morris. He can’t trust a woman who is with the very military oppressing his people. Wendy has worked hard to rise in the ranks of the ultimate male-dominated field. She's not crazy about her current assignment, but if her superiors think the hybrids are a threat, then she’s not going to question them. However, the more she gets to know the moody and handsome Cato, the more she starts to wonder just who the threat is. When unexpected trouble descends on the Lodge, the pair will need to team up to keep everyone around them safe and protect their own chance at true happiness.

Lucan is tired of his people losing to the Horatius Group. With Luna Lodge still recovering from a horrific bombing, the eager hybrid is looking for a little justice. He just can’t let a little thing like his heart stand in the way. Even though Lucan saved the life of his destined mate, Jamie, he’s determined to keep his distance from her. He tells himself it’s for her own safety, but she has a few thoughts of her own about relationships. Jamie’s been through hell before, and the latest incident is no different. She’s not willing to wait around for what she wants, but instead decides to go after Lucan, whether he says he wants her or not. The enemy still lurks in the shadows, vicious and willing to target both the hybrids and those who might love them. Just when Lucan and Jamie think they might have a chance at happiness, a shocking revelation brings her into the middle of an opportunity for revenge against the Horatius Group. Surrounded by an enemy who could be anyone, Lucan will have to decide if he wants to forsake his vengeance or protect his woman.

Isolated from the rest of the Luna Lodge hybrids, Rollo is on his toughest assignment. He’s having to pretend to be a normal human worker as part of a plan to infiltrate the office of one of the hybrids’ greatest enemies in the US government. If his mission succeeds, he might be able to save the hybrids from slavery. Rollo finds that fighting crazed Glycons or dealing with cultists is easy compared to dealing with humans. Living among them, the hybrid begins to understand the true depth of humanity, both its beauty and cruelty. There’s just one thing he didn’t plan being attracted to the feisty and alluring reporter Jill Hope. Jill Hope is still trying to make up for waging journalistic war against the hybrids. After being saved by them, she understands the heroes they can be, and more to the point, she also appreciates the charms of a handsome well-muscled man who is eager to please. When her own investigation crosses paths with Rollo’s, Jill thinks there’s an opportunity for a human-hybrid collaboration both in bed and for the mission. A little distraction never hurt anyone. Soon, though, what seems like the perfect pairing ends up with both Jill and Rollo knee-deep in government and criminal intrigue. With the other hybrids hundreds of miles away, the pair can only rely on each other to survive.

Hybrid super-soldier Nikon hasn’t felt like a whole man ever since the death of his twin brother Alair. Although he already wreaked his vengeance for the death, peace still evades his soul, and he begins to wonder if he’ll ever recover from the loss. Everything changes when he starts spending his nights with Leah, the woman who was supposed to be his brother’s destined mate. His heart and body desire the woman, but Nikon worries he’s betraying the memory of his brother. Nikon’s presence comforted Leah following the loss of Alair, but now she finds herself frustrated by his distance as she begins to consider how she might have always wanted him more all along. All she can be sure of is that he fills the hole in her heart. With the hybrid’s enemies on the move, Nikon realizes that the best place for Leah might be far away from him. He’ll have to decide if he’s willing to sacrifice his own happiness to keep the woman safe.

Mia never had a chance to tell the hybrid Tycho how she felt before he died. Now, she clings to thoughts of escape and rescuing her sister from the clutches of a vicious criminal who sees her as little more than a doll. With a forced marriage on the horizon, it’s hard to hold onto her few slivers of hope. Tycho has been beaten, drugged, and separated from his destined mate Mia, but his captors have underestimated his intelligence and his determination. It isn’t his first time as a prisoner, but he’s ready to ensure it’s his last. Breaking free is only half the battle. A desperate gambit to rescue Mia’s sister will force Tycho and Mia to put aside their passion and trust dangerous allies. They’ll be forced to ask themselves what price they’re willing to pay for freedom.