Hal Jordan (Ryan Reynolds), a brash, talented test pilot, is chosen by an alien force of warriors to become their representative on Earth and use his new powers as the Green Lantern to promote order and justice before conflict destroys his world. Despite being the first human to wear the ring that bestows his abilities, Hal must combat villain Parallax. Fellow pilot Carol Ferris (Blake Lively) aids Hal in his quest to save the galaxy.