"After being on the run, Ariane Tucker finds herself back where she started--under the cruel control of Dr. Jacobs, head of the research facility that created her. Now she must participate in the upcoming trials; a deadly competition pitting her against other alien hybrids, each representing a rival corporation"--

For a century now, Earth has been a peaceful colony of an alien race, and Donovan Reyes is a loyal member of the security forces, while his father is the Prime Liaison--but when a routine search and seizure goes bad Donovan finds himself a captive of the human revolutionary group, Sapience, terrorists who seem to prefer war to alien rule, and killing Donovan just might be the incident they are looking for.

Cara and Aelyx maintain their extremely long-distance relationship, with Cara continuing as an exchange student and becoming human representative to a panel preparing for a human colony on L'eihr and Aelyx working on a campaign to improve human-L'eihr relations, which soon makes him a target of extremists.

"A.J. and the gang at Ella Mentry School are in for a super surprise when a new teacher, Mr. Cooper, take over their third grade class"--

When he takes a ride in a UFO to meet Janet, the head alien, Rappy must decide whether to live with her on Mars or return home.

When the peaceful alien-run government decides to simply withdraw from Earth, it seems that the terrorist group Sapience is going to get the "free" Earth it wanted; but Donovan Reyes, member of the security forces, and once a prisoner of Sapience, realizes that freedom comes with a price--other alien races want to strip the planet of its resources, and if anyone is going to survive, what is left of the security forces and Sapience have to work together....

Secret agent Bubble07, who exactly resembles a stuffed toy, is on Earth to assess whether or not the unicorns should invade the planet--but despite some bizarre Earth customs like show-and-tell, and annoying Earth dogs, ultimately suggests that Earth would serve as an excellent vacation destination for unicorns.

Seven-year-olds Bradley, Brian, Nate, and Lucy make observations and gather clues that convince them that their older siblings, cousin, and animals have been captured by hungry space aliens.

"When we last saw Squad 312, they working together seamlessly (aka, freaking out) as an intergalactic battle raged and an ancient superweapon threatened to obliterate Earth. Everything went horribly wrong, naturally. But as it turns out, not all endings are endings, and the team has one last chance to rewrite theirs. Maybe two. It's complicated. Cue Zila, Fin, and Scarlett (and MAGELLAN!): making friends, making enemies, and making history? Sure,...

As her dad and best friend lie dying in the hospital, Miki and Jackson prepare for the final mission that, hopefully, will win the Game before the walls between the real world and the deadly Game come crashing down.