The battle between good and evil comes to an explosive head – sacrifices must be made, worlds collide, loyalties are tested and the town of Sleepy Hollow will never be the same

Ichabod and Abbie concoct a daring plan to try to rescue Ichabod's wife from the Headless Horseman by resurrecting a Frankenstein-like monster created by Benjamin Franklin. Frank faces new trouble after revealing the true details of his encounter with a demon. Jenny finds herself at odds with the new sheriff in town.

A woman from Ichabod Crane's past comes to Sleepy Hollow in the form of an un-dead Weeping Lady, aiming to harm anyone in her path. Katrina and Crane learn unsettling things about each other's pasts. Abbie has some unexpected flirtatious encounters.

Ichabod and Abbie set out to find the Sword of Methuselah, the only weapon capable of killing Moloch and ending the coming apocalypse.

The town of Sleepy Hollow and its inhabitants are permanently changed; a relationship is destroyed beyond repair.

After a startling discovery, Abbie and Crane realize what they must do in order to make Pandora’s box complete again. Meanwhile, the team works tirelessly to stop The Hidden One, before he destroys all of humanity. Can the Witnesses succeed with the fate of the world in their hands once again.