After a gentle alien becomes stranded on Earth, a young boy named Elliott (Henry Thomas) discovers and befriends it. He brings the extraterrestrial, dubbed E.T. into his suburban California home and introduces it to his brother and little sister, Gertie (Drew Barrymore). The children vow to keep E.T.’s existence a secret, but when the alien falls ill, government authorities intervene, placing both Elliott and his otherworldly friend in a dire situation.