Superman: Last Son of Earth is a DC Comics Elseworlds tale released in the year 2000. It was written by Steve Gerber with art by Doug Wheatley. There was a sequel in 2003 called Superman: Last Stand on Krypton. The story is a reverse of the usual Superman origin with him being sent from Earth to Krypton and discovering a Green Lantern power ring, which he uses to become a superhero. Gerber's focus is more on social commentary: particularly xenophobia, cultural stagnation, and authoritarianism.