Clara Kent has finally has her life under control, a great job, loving parents, protecting the world as Superwoman, and most importantly she has the love of her life Louis Lane by her side. Clara has gone back and fourth with the idea of asking Louis to marry her, knowing that she may put him in danger bringing him into her hero life. But a mysterious space craft is discovered underground by Lexi Corp. They accidentally unleash the ultimate destructive alien known as Doomsday from within. Doomsday proceeds to rampage across the country as it reaches the city of Metropolis. The Justice League takes a stand against this monster. Superwoman races in to stop Doomsday's killing spree in the city but finds the creature an even match.