The two worlds collide as Sleepy Hollow is rocked to its core in the final battle between Good and Evil.
Abbie and Ichabod must find a way to save Abbie's sister, Jenny, who has been possessed by an evil spirit.
While attempting to communicate with Katrina in Purgatory, Ichabod and Henry Parrish unwittingly unleash a new evil.
A Colonial house from Ichabod's era may hold they key to finding a missing person... and a secret from Ichabod's past.
Jenny returns to Sleepy Hollow to help Ichabod, Abbie, and Captain Irving against the Horseman, only to realize his true motive wasn't what they believed.
As Ichabod and Abbie deal with the Horseman as it seeks its skull, Abbie gets an unexpected visit from Andy Brooks.
Ichabod disappears and Katrina contacts Abbie in her dreams to warn her that the Headless Horseman is returning, and that she should seek out a reclusive man, John Parrish. Meanwhile, Ichabod encounters a figure from his past.moreless
Ichabod and Abbie are called in to investigate the case of an unidentified boy who has turned up in town. As they investigate his background, they discover a surprising mystery.
Jenny Mills escapes from the institution and Ichabod and Abbie set out to find her before their enemy does. In the process, they learn more about the demon they are facing.
The Sandman, another member of the army of evil, tortures the people of Sleepy Hollow by infiltrating their dreams and turning them into nightmares. When the Sandman targets Abbie, she must seek out her institutionalized sister, Jenny, and face her past.moreless
While still adjusting to his 21st century reality, Ichabod and Abbie continue on their quest to clear up Sleepy Hollow's mysteries. After a vision from Katrina, the two set out to look for a witch from the 1700s. The witch has been awakened and is intent on destroying Sleepy Hollow. Despite what happened to him, Andy Brooks is back and pursuing his own agenda.moreless
The BAU profiles an author whose daughters disappear on the same date his wife did a year ago.
Dr. Grace Devlin has to take care of a family that suffered serious injuries in a car crash. Meanwhile Constantine orders Grace to help a drunk driver who caused a deadly accident and fled the scene, Nate makes a weighty move and someone is admitted to a psychiatric ward after a bar fight.moreless
Grace and Dr. Robinson work on a heartbreaking case of a young bride who has a difficulty controling her mood changes. Meanwhile, Alexander sends Grace to meet Donte Amanto who used to be Paul Moretti's rival and now suffers from mysterious, severe disease.moreless
As Sarah and Luc's nuptials approach, plans go horribly awry and the Walkers learn several surprising lessons about the real meaning of family. This is the series finale episode.