The CW has released the synopsis for the fourteenth episode of Supernatural‘s eighth season, titled “Trial and Error.”

The official press release had the following information about the episode:

KEVIN DECIPHERS THE TABLET — Kevin (guest star Osric Chau) deciphers the tablet and figures out how to close the gates of Hell. He tells Sam (Jared Padalecki) and Dean (Jensen Ackles) that according to the tablet one person must face a series of three tests designed by God. The first one – kill a hellhound. Sam and Dean argue over who should complete the trials. Kevin Parks directed the episode written by Andrew Dabb.

It looks like we’ll be moving back into the season-long mytharc with this episode as Kevin makes a breakthrough with the Word of God tablet he’s been translating. We’re especially interested in the idea of there being three tests – as they will undoubtedly be difficult – that only one of the brothers can face.

This setup should lead to some intense episodes over the back half of the season focusing on the completion of the three tests. And we don’t doubt that Crowley will complicate matters, especially in his search for the angel tablet.

“Trial and Error” airs Wednesday, February 13 at 9:00 p.m. ET.