Kyle Raynor is Green Lantern, a member of the Justice League of America and a space-traveling super hero who is the current heir to one of the most powerful forces in the known universe: the Green Lantern power ring. But he's got a problem: his girlfriend has just taken a liking to an average Joe who is about to be transformed into the most powerful villain Earth has ever faced. Green Lantern must stop the evil Sinestro and the invading hordes of aliens determined to destroy humanity and take over Earth.