The CW released a few clips of the season finale
7.23 - "Survival of the Fittest".

Sam & Dean prepare for battle with Dick Roman. The Winchesters must take him down or will die trying.

Airs: Friday May 18th, 2012 at 9/8c

The CW has released 11 episode stills of the season finale 7.23 - "Survival of the Fittest".
Dick’s in the final phase of his plan and the Winchesters must stop him.
Written by: Sera Gamble,
Directed by: Robert Singer.
Airs: Friday, May 18th, 2012 at 9/8c.

The CW released a few clips of the episode
7.22 - "There Will Be Blood".

Winchesters must face two of their strongest opponents: an Alpha Vampire and Crowley in order to stop the Leviathans.
Airs: Friday May 11th, 2012 at 9/8c

The CW has released 18 episode stills of
7.22 - "There Will Be Blood".
Sam & Dean must locate three key items in order to stop Dick Roman and the rest of the Leviathans.
Written by: Andrew Dabb & Daniel Loflin,
Directed by: Guy Bee.
Airs: Friday, May 11th, 2012 at 9/8c.

The CW released a few clips of the episode
7.21 - "Reading is Fundamental".

Sam and Dean believe Kevin, the new reluctant
prophet holds the key to defeating the Leviathans.

Airs: Friday May 4th, 2012 at 9/8c

The CW has released 13 episode stills of
7.21 - "Reading is Fundamental".

Meg calls Dean and Sam and tells them Castiel is awake and talking.
Written and Directed by: Ben Edlund.
Airs: Friday, May 4th, 2012 at 9/8c.