WARNING: The following contains spoilers for Wynonna Earp Season 4, Episode 8. 1 / 8
It's Halloween once again in Purgatory and the monstrous Rotten Jack goes on a rampage. 2 / 8
Wynonna and Waverly try to recruit someone capable of stopping him but lose their memories. 3 / 8
Doc Holliday finds out about Wynonna's romantic liaison with Amon. 4 / 8
Amon, for his part, captures the amnesiac Wynonna and Waverly for public execution. 5 / 8
Jeremy restores the sisters' memories while Rotten Jack is eventually destroyed. 6 / 8
Wynonna learns that Purgatory's curse is expanding beyond the Ghost River Triangle. 7 / 8
Meanwhile, Doc frees Amon's demons and turns them on their former master. 8 / 8