After witnessing a hit-and-run during a friend's livestream, Alec and Kylie aim to prove it wasn't an accident; as Marisa and Jace continue their investigation into the church bombing, they set their sights on a prominent senator.
Clark finds himself in a psychiatric hospital where he discovers he's been suffering from delusions that he comes from another planet and has superpowers.
Emily Locke starts her first day as the director of research and development at Wayne Security. When she comes in bursting with big ideas and confidence, she quickly learns that her expectations far exceed those of her new boss and colleagues.