Still guilt-ridden about the destruction he caused while he was Zod, Lex throws a charity costume ball for the town and hires the All-American Rejects to perform. Meanwhile, Clark and Chloe pursue a creature who uses male human bodies as potting mix to procreate, and the hunt intensifies after the creature gets hold of Jimmy Olsen. Lois reluctantly agrees to be Oliver Queen's date to Lex's ball.