泰勒和尼克兄弟俩发现了一艘在附近小镇坠毁的UFO。他们发现这艘UFO竟然是活的,并且准备占领地球。泰勒在与飞船接触后,拥有了超人的能力。外星人抓获了泰勒后,拯救他和地球的使命落到了尼克的身上。Fourteen-year-old Tyler encounters an alien ship which makes him appear older, inexplicably turns him into a "Skyrunner" with incomprehensible powers. This turns his high school life upside down, and may enable him to help his slightly clueless older brother's love life. After he is abducted by beings who intend to takeover of Earth, he must depend on his inept, lovelorn, and goofy brother to rescue him.