Supernatural's Rowena will switch her attention from the Grand Coven to the Men of Letters in "Inside Man."

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Crowley's (Mark Sheppard) witch of a mother is annoyed at the Winchesters for all sorts of reasons, but most recently it's Sam (Jared Padalecki) and Dean's (Jensen Ackles) connection to the famed Men of Letters that has Rowena (Ruth Connell) bent out of shape. The "curators" of magical knowledge apparently struck down the Grand Coven when they locked up a litany of powerful items and the spurned witch is ready to get them back.

Rowena will start this mission in "Inside Man" when she goes head-to-head with Dean once more.

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"There's worst ways to spend an afternoon than being bent over a bar by Jensen [Ackles]," Connell told ScreenFad. "We came face-to-face before in 'Girls, Girls, Girls' and I managed to get away from him because Cole came in. This is our second face-to-face. That was a long day's filming, I'll tell you. [But] he's wonderful to work with."

Neither of these opponents are milquetoast fighters, so it will be interesting to see who comes out on top on April 1. Photos for the episode (see above) indicate that rowena will have no qualms about pulling out a little magic.

Find out more when Supernatural airs Wednesdays at 9 p.m. ET on The CW. Click the video below to see a preview for the series' next episode.