Aliens in the Attic movie is about a group of kids must protect their vacation home from invading aliens.
The Pearson family (Kevin Nealon, Carter Jenkins) think they have got the ultimate family vacation as they head to their vacation home in Maine. However, soon after arriving to the house, they discover that they are not the only people staying in it since a friendly alien has found the house first. Though the alien is friendly, his friends are not, and they are ready to invade the house.
The kids (Ashley Tisdale, Henri Young, Regan Young) have to gear up and defend their vacation house with everything they have or else the aliens will probe them out to space and destroy the world.