Advanced Thanatology
| Episode Number | 5 |
|---|---|
| Season | 13 |
| Aired | 2017-11-09 |
| Overview | While working on a case involving the ghost of a demented doctor, Sam and Dean get assistance from an unexpected source - Billie. Castiel finds his way back to the Winchesters. |
| Runtime | 42 minutes |
| Absolute Number | 269 |
| Finale Type |