Ichabod enlists Henry Parrish to help him communicate with Katrina, but in the process, a menacing danger is unleashed from purgatory.

The battle between good and evil comes to an explosive head.

Picking up immediately after the spellbinding events of the Season One finale, Ichabod finds himself buried alive in a coffin; Abbie is trapped in purgatory; Ichabod's wife, Katrina, has been kidnapped by the Headless Horseman; Capt. Frank Irving is behind bars for a murder he did not commit; and Abbie's sister, Jenny, is among the wreckage of a horrific car crash. These events were due, in large part, to the shocking revelation that Henry Parish, the trusted friend of Ichabod and Abbie, is actually Ichabod and Katrina's son and the Second Horseman of the Apocalypse. Now, with Henry's emergence as the Horseman of War, alongside the Headless Horseman.

Ichabod Crane and Lt. Abbie Mills concoct a daring plan to try to rescue Ichabod's wife, Katrina, from the Headless Horseman by resurrecting a Frankenstein-like monster created by Benjamin Franklin. Meanwhile, Frank Irving faces new trouble after revealing the true details of his encounter with a demon, and Jenny Mills 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. Meanwhile, Katrina and Crane learn unsettling things about each other's pasts, and Abbie has some unexpected flirtatious encounters.

Abbie and Ichabod learn that Katrina is in imminent danger and race against the clock to help her.

Abbie and Ichabod are on a quest to find a weapon of ultimate power to kill Moloch - the Sword of Methuselah - before the Headless Horseman can stop them.

When Reynolds heads to D.C. to discuss developments in the Nevins case, Abbie is left in command. Jenny and Joe deal with unexpected consequences as a result of stealing the shard, which leaves both the lives of the heroes and Abbie's career in great peril. Meanwhile, a new, more dangerous evil force is revealed.

The Kindred, the Frankenstein-esque creature Abby & Crane used against the Headless Horseman, returns and wreaks bloody havoc on Sleepy Hollow.

Molly's childhood imaginary friend reappears as a monster. Molly visits The Vault for the first time.