We have the synopsis for episode 21.
MARY VS. TONI BEVELL – Sam (Jared Padalecki) and Dean (Jensen Ackles) are alarmed when they learn hunters are being killed by suspicious “accidents” all over the country. They decide it is best to find Mary (guest star Samantha Smith) and make sure she’s safe. Meanwhile, Toni (guest star Elizabeth Blackmore) is back in the states and she and Mary face off. PJ Pesce directed the episode written by Brad Buckner & Eugenie Ross-Leming (#1221). Original airdate 5/11/2017.
Mary vs. Toni Bevell! And written by Brad and Eugenie! I am looking forward to the showdown. It looks like the BMOL are moving on the directive to "kill all American hunters", so that's not good. Apparently no angels, no demons and no nephilim. What do you think? Let us know in the comments or in the discussion thread for episode 21.