Brainiac's consciousness takes control of LexCorp's computer systems and traps Luthor in his own laboratory, forcing him to rebuild Brainiac's primary body in secret. After Clark questions why Lex is missing from his office, Superman and Mercy Graves team up to investigate his disappearance.

The Joker steals a large piece of Kryptonite and then comes to Metropolis, offering to kill Superman for Lex Luthor in exchange for one billion American dollars. Meanwhile, Bruce Wayne pays a visit to Metropolis to negotiate a business deal with Lex. Bruce also uses this opportunity to suit up as Batman and hunt the clown. Superman uses his X-ray vision to discover Batman's identity while Batman uses a tracking device on Superman's cape to discover his.