Who was killing hunters in suspicious accidents?
That was a key question on Supernatural Season 12 Episode 21 when the brothers decided to investigate a string of hunters being murdered in mysterious circumstances.
They were also conflicted about how to find their mother when she went off on a solo mission but did they manage to find her before she became a casualty of this new threat?
Also, Tori returned to the country and faced off with an old enemy.
Use the video above to watch Supernatural online to get up to speed with the latest drama for the characters.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.