The Mogadorian invasion has come to Earth, and they have all but won the battle for our planet. Their warships loom over our most populous cities--like New York City, Tokyo, Moscow, Beijing, and New Delhi--and no army will risk making a move against them. The Garde are all that stand in their way . . . but they are no longer alone in this fight. Human teens from across the globe, like John Smith's best friend, Sam Goode, have begun to develop Legacies...

"Trapped aboard the Undying's ancient spaceship and reeling from what they've learned there, scavenger Mia and academic Jules are plunged into a desperate race to warn their home planet of the danger humanity's greed has unleashed"--

Buzz is filming a movie about aliens from Outer Space, who capture Fly Guy and Buzz Boy--and our two heroes must outsmart the aliens, with some help from Dragon Dude and Fly Girl.

Sixteen-year-old half-alien Sydney Chambers leaves Earth to seek his long-missing father, and unearths a devastating, centuries-old secret about humanity.

"A gamer must rescue his crew and captain from an alien invasion, with a talking robot as his only aid, when he plays this virtual reality video game"--

While Nita's sister and her dad host three young alien wizards, teenage wizards Nita and Kit travel halfway across the galaxy as part of an exchange program and find themselves again caught up in the dark doings of their nemesis, the Lone Power.

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.

The Yeerk that controls Jake's brother Tom is desperate to keep Tom from going with the family to his great-grandfather's funeral, even if he has to kill Jake's father.

Buddy McGee eagerly awaits a promised Christmas visit from his friend, the thing from outer space.

Agent Sorn picks Zack up from Earth and together they seek other aliens who can speak in support of inviting that planet to join the Galactic Union, while the Gnairt and the Kiapa Kapa Syndicate try to stop them.