Plot summary
Two months after Moloch's defeat, Ichabod and Abbie continue to investigate supernatural occurrences. While investigating blighted crops, they encounter an angel named Orion ( Max Brown ), who has been freed from purgatory after being trapped there for 200 years during a battle with the Horseman of Death. As he offers to destroy the Headless Horseman for good, Abbie sees him as the solution to their greatest problem, however, Katrina, who wishes to separate the Horseman from Abraham, warns him of their plan. With Nick's help, Abbie and Orion locate the Horseman, during which Orion reveals his intentions to steal the power of Death for the angels. Ichabod interferes and breaks his sword with the Horseman's axe, driving him off. Katrina persuades Abraham to give up his vendetta against Ichabod so that she can make him human again.
Credits
Adapted from Wikipedia contributors, Sleepy Hollow season 2. HTML formatting and reference markers removed.