Kara finds an unknown young man lying unconscious in the pod and takes him to DEO. She prepares for a date with James just as the commercial spacecraft, the Venture, is launched into space. It suffers engine failure and descends to Earth, but Kara saves the craft with help from Superman. They find the main target to have been Lena Luthor, the new CEO of Luthor Corp after her brother, Lex, was convicted. In a ceremony where she renames the company L Corp, she is attacked again by John Corben, the assassin. Alex engages him while Kara and Clark stop a building from collapsing. Corben reveals he is working for Lex before he is shot by Lena. Kara chooses to be a reporter for CatCo, a decision supported by Cat. Kara and James decide to keep their relationship friendly. Winn is formally hired to work with the DEO. Meanwhile, J’onn reveals to Alex that he was the one who found the Kryptonite and decided to keep it against the wishes of Clark, who wanted to destroy it. At Project Cadmus, an unnamed woman revives Corben and begins turning him into a kryptonite-powered being called Metallo.
Original air date: October 10, 2016
Writter: Greg Berlanti, Andrew Kreisberg