The CW has released the episode description for the 21st episode of Supernatural season 12. The title of the episode is “There’s Something About Mary”.
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.
Brad Buckner & Eugenie Ross-Leming written the episode directed by PJ Pesce. Supernatural Season 12 Episode 21 airs on May 11 at 8|7c on The CW.