The CW released a few clips of the episode
8.23 - "Sacrifice".

With Kevin’s help, Sam & Dean bound into one last play against The King of Hell.

Airs: Wednesday, May 15th, 2013 at 9/8c

The CW released a few clips of the episode
8.22 - "Clip Show".

Sam and Dean reunite with Castiel. Meanwhile, Crowley digs into Sam and Dean’s past.

Airs: Wednesday, May 8th, 2013 at 9/8c

The CW released a few clips of the episode
8.21 - "The Great Escapist".
Sam and Dean make a discovery that sends them to a casino in Colorado, to find a mysterious recluse who may be able to help with the third trial.

Airs: Wednesday, May 1st, 2013 at 9/8c

The CW released a few clips of the episode
8.20 - "Pac-Man Fever".
Concerned about the physical toll the second trial took on Sam, Dean benches his brother from hunting until he heals up.

Airs: Wednesday, April 24th, 2013 at 9/8c

The CW released a few clips of the episode
8.19 - "Taxi Driver".

Sam and Dean team up with reaper who helps them deal with the second trial from the demon tablet.

Airs: Wednesday, April 3rd, 2013 at 9/8c

The CW released a few clips of the episode
8.18 - "Freaks and Geeks".
Sam and Dean meet a hunter named Victor who has taken in a group of orphan kids to teach them how to hunt.

Airs: Wednesday, March 27th, 2013 at 9/8c