The first DCEU film tells us how kal-El Superman reaches land after his home planet Krypton is destroyed, Kal now known as Clark Kent works for Perry White on the Daily Planet, Clark after saving a Bus decides to become the Guardian of land under the name Superman now he will have to face Parasite.
Post Credits Scene: Clark is sent to Gotham to investigate a Vigilante who has been in town for 20 years, Batman.