30 parts Complete A new threat emerges for the Winchesters, unbeknownst to them, and it's no supernatural creature.
And, as if things couldn't get worse, a Nephilim comes into being and his birth will affect those closest to him.
Between a new relationship, another country's Men of Letters, a powerful Nephilim and an apocalypse world, life, as usual, remains as distant from ordinary for the Winchesters and their angel.
(Seasons 12-13)
*I don't own Supernatural or Castiel. All credit goes to Eric Kripke. I only own my version of Castiel and any lines or actions added.*