The Return (It all ends here)

After defeating the evil version of myself I thought everything was going to go back to normal, I was able to accept my identity, go back home with my friends and got my family back. I even thought that Jack was going to take Sam and Dean back to Heaven, but it seems that I forgot about one thing. Adam was still alive and he promised that I would pay for not choosing him. I thought I would never see him again. But when my children unexpectedly showing signs of being half demon, I'm terrified at what to do. At first I thought I could help them be good but when years go by and bad things start happening, I'm left with no choice but to call on some old friends. But what's one last hunt? If the brothers can do it so can I.