Brother's Keeper
| Episode Number | 23 |
|---|---|
| Season | 10 |
| Aired | 2015-05-20 |
| Overview | Dean makes a shocking decision regarding the Mark of Cain that would change not only his life, but Sam’s too. Meanwhile, Crowley and Rowena face off and Castiel gets caught in the middle. |
| Runtime | 42 minutes |
| Absolute Number | 218 |
| Finale Type | season |