Pearson (Kevin Nylon Kevin Nealon) takes his family to the villa in the suburbs to spend the summer vacation with his brother's family. A seemingly ordinary meteor shower forced four aliens to land in the attic of the villa with high-tech instruments that could control people's minds. At first, they used their boyfriend Ricky (Robert Hoffman Robert Hoffman), who controls Bethany (Ashley Tisdale Ashley Tisdale), to sneak into the family, only to be keenly noticed by the Pearson children. Although the adults in the family did not believe what the children said, the children gradually realized the huge potential crisis of the four aliens in the attic and quietly United in a human defense war. And the four aliens are not to be outdone. In the face of all kinds of novel small arms made by the children, they use the machine that controls the human mind to control the adults at home to counter-attack these children. But there is one exception among the four aliens, that is, technician Sparks, who had no intention of fighting, he coincidentally befriended Hannah and gave up the dark start.