Ichabod has another vision of his wife Katrina, and she confirms the four horsemen coming are conquest, war, famine and death.

Abbie armed Ichabod's motel room with Post-It notes so he would be able to function.

Abbie starts to doubt everything that happened.

Andy Dunn comes back to life.

Andy finds bodies to feed to the dark spirit.

Abbie's ex, Luke, and Ichabod meet.

Abbie and Ichabod discover the identity of the dark witch, Serilda of Abaddon.

With Andy's help, Serilda is seeking the ancestors of those against whom she laid a spell before she was burned at the stake.

Ichabod and Abbie stop Serilda. 

Abbie has visions of Sheriff Corbin. 

The Satan-esque creature is spying on Abbie's sister, Jennie, in her room at the asylum.