Henry Evans es un niño tan modélico que sus padres tienen razones de sobra para sentirse orgullosos de él. Sin embargo, bajo su apariencia cariñosa y apacible se esconde una mente retorcida y poblada de ideas malignas. Sólo otro niño podría darse cuenta de ello; y eso es lo que ocurre cuando su primo Mark, tras la muerte de su madre, se traslada a vivir con los Evans.
11-year-old Davey's mother is dead and his father doesn't spend nearly enough time with him. So the boy loses himself in video games--and even has an imaginary friend, a super-resourceful secret agent. When he accidentally comes into possession of a spy group's secret plans, and winds up on the run from them, he must learn to rely on himself and his imaginary pal to save his skin.