'Supernatural' Season 12 Episode 12 Spoilers, News & Update: Mary Gets In Trouble, What We Know So Far!

A new promo trailer is out for "Supernatural" Season 12 Episode 12. It seems that Castiel (Misha Collins) may be in danger in order to save Sam (Jared Padalecki) and Dean (Jensen Ackles) Winchester.

It can be recalled that Dean was under a memory loss spell in "Supernatural" Season 12 Episode 11. He nearly forgot everything including his name. Sam had to do his best to remind Dean of who he is and that involved him placing Post-Its everywhere.

In the end, Dean got his memory back and they again go back to being hunters with Sam. The next episode right after Dean lost his memory is titled "Stuck in the Middle (With You)." It hints that Mary Winchester (Samantha Smith) is still in touch with the British Men of Letters and she keeps it a secret from her sons.

Mary is investigating a case and she needs the help of Sam, Dean and Castiel in the upcoming episode of "Supernatural" Season 12. She does not let them know that the British Men of Letters are also on the same case.

The British Men of Letters will blackmail Mary and that is the only time that the truth of her being in touch with the organization is going to be revealed. "Supernatural" Season 12 Episode 12 also brings back Rowena (Ruth Connell). She helped Castiel and Sam to get to an old witch to bring back Dean's memory. The reason is that she wanted to get an old book that the witch family has.

Meanwhile, the latest promo trailer for "Supernatural" Episode 12 gives a glimpse on how Mary is to be double-crossed by the British Men of Letters. The incident then brings Castiel and the others in real danger this time. It seems that the organization is after Sam and Dean.

"Supernatural" Season 12 Episode 12 airs on Feb. 16.