Photos from the May 20 season finale of Supernatural, titled Brother's Keeper

The CW has released a lot of photos from the Wednesday, May 20 season finale of Supernatural.

The tenth season ends with an episode called “Brother’s Keeper.” Here’s how the network describes it:

SUPERNATURAL SEASON FINALE — Dean (Jensen Ackles) makes a shocking decision regarding the Mark of Cain that would change not only his life, but Sam’s (Jared Padaleck) too. Meanwhile, Crowley (Mark Sheppard) and Rowena (guest star Ruth Connell) face off and Castiel (Misha Collins) gets caught in the middle. Phil Sgriccia directed this episode written by Jeremy Carver (#1022). Original airdate 5/20/2015.

Below, you can find the new photos from the season finale.