Preview Supernatural season 10, episode 4, “Paper Moon,” with the episode synopsis, promotional stills, and trailer.

Previously, Sam brought Demon Dean back to the bunker and began the curing process. While Castiel reminded Sam of what he would have to do if the cure failed, Sam refused to give up on his brother. And when Dean escaped from his confines, a game of cat and mouse ensued in the bunker with Dean prepared to kill his brother.

Meanwhile, Castiel and Hannah were ambushed on the way to the bunker by Adina, though Crowley stepped in. He took Adina’s grace before killing her and gave her grace to Cas, telling him to solve the problem of Demon Dean.

In the bunker, Cas helped Sam stop Dean and finish the curing process. Dean is human once again, though the Mark of Cain remains an issue.

Read our recap for Supernatural season 10, episode 3, “Soul Survivor,” here.

The official synopsis for Supernatural season 10, episode 4, “Paper Moon,” reads:

“WEREWOLF KATE RETURNS — A recent string of werewolf attacks points to a surprising culprit — Kate (guest star Britni Sheridan), the werewolf Sam (Jared Padalecki) and Dean (Jensen Ackles) let live. Jeannot Szwarc directed the episode written by Adam Glass (#1004).”

Meanwhile, promotional stills show the Winchesters in action as well as Kate:

Finally, watch a trailer for the episode:

Supernatural season 10, episode 4, “Paper Moon,” airs Tuesday, October 28 at 9:00 ET on The CW.

Will you watch ‘Supernatural’ season 10, episode 4, ‘Paper Moon’?