Mitchel Timmons and her friends just wanted to enjoy a day at the park, regardless of the threat of the Arra hanging over the planet, and more specifically, their town. They want to be able to live their lives, despite the warnings. They figure that as long as they're home by nightfall, they'll be safe, or so they thought.

When the girls disappear, Mitchel's father blames the Ruinos, for good reason. He'd heard her frantic phone call and knows it was them who ambushed his daughter and her friends in the park. How can he be expected to rely on other Ruinos to stage a rescue?

Mitchel hates the Ruinos as much as her father does. She never expects one of those aliens to latch onto her and protect her from other Ruinos as well as the Arra when she's held captive aboard the Arran spaceship. In fact, although she doesn't want to admit it, she feels safe when she's around him. Which is why, when she sees the chance to escape, she takes him back down to Earth with her.

Now her heart's divided between wanting to still hate the Ruinos and caring for Neeallt, who's beginning to mean a lot to her. Unfortunately, the town is divided between those who support the Ruinos and those who don't, even though the Ruinos are working hard to blend in, hoping to find their mates among the humans as they try to make an honest life for themselves. Their common enemy is the Arra, who are orbiting the planet and waiting for their chance to kidnap the human females in order to force the Ruinos to mate with them as a way to increase their numbers.

Despite the good the Ruinos have done, the townspeople want the aliens gone, and Mitchel is faced with losing Neeallt or staying with him. Maybe it's time they both move on from Tumbril Harbor and find some place safer. A place they can call home.

No one was prepared for the Arra's next move, despite all their precautions.