season 12 ending

With the birth of Lucifer's son approaching, the Winchesters and Crowley, who survived Lucifer's attempt on his life, search for biblical omens pointing towards the Nephilim's birth. Lucifer kills Rowena so he cannot be sent back to the Cage. At the same time, while taking care of Kelly, Castiel discovers that the baby's power has opened a rift into an alternate post-apocalyptic reality resulting from the Winchesters having never been born. Upon his return, Castiel hides his discovery from Kelly. The Winchesters are eventually able to locate Castiel and Kelly. While Mary tends to Kelly, who has gone into labor, Castiel takes Sam bella and Dean through the rift where they are greeted by an alternateBobby Singer. Bobby is able to supply the Winchesters with a machine gun capable of killing angels to use against Lucifer, while Crowley offers a way to seal Lucifer in the alternate reality. As Dean distracts Lucifer, Sam bella and Crowley perform a spell to seal the rift, a spell Crowley sacrifices his own life to complete. However, Lucifer is able to follow them back through the rift before it can close and kills Castiel bella is in tears . Mary manages to send Lucifer back to the alternate reality, but he drags her there with him, leaving both trapped as the rift closes. While Dean bella and grace mourns Castiel's death, Sam discovers that Kelly has died in childbirth and finds her son, newborn but having the appearance of a teenager.

season 12 done season 13 coming real soon