Alien Contact

"Zach, a human boy who is actually an extraterrestrial agent for the Galactic Union, travels to California's Lassen Volcanic National Park on a dangerous mission to save the Earth from evil aliens known as the Syndicate."@en
"Zach, a human boy who is actually an extraterrestrial agent for the Galactic Union, travels to California's Lassen Volcanic National Park on a dangerous mission to save the Earth from evil aliens known as the Syndicate."
"Most humans know that scientists are combing outer space for evidence of intelligent life in the universe. And most aliens know that the Galactic Union has been diligently jamming those efforts until Earth is ready to join. A small group of aliens has other ideas, though. They plan on sending humans fake messages as part of a plan for world domination. Only one "human" can stop them: Zack Gaither, Alien Agent. Zack will have to use all he's learned in his previous adventures to save Earth from the Gnairt. Fortunately, he's got some help this time. And she's kinda cute..."