Plot summary
Abbie learns that August Corbin's son Joe has returned to town after being honorably discharged from military service. As he still blames her for his father's death, however, he refuses to see her. While responding to reports of loud noise, they discover Joe surrounded by dozens of corpses. Ichabod suspects that Joe is a wendigo, a monster who feeds on human organs when it smells blood. After witnessing him transform again, they feed him to reverse the transformation. Henry reveals that he placed a curse on Joe using a letter, and that he is willing to exchange the cure for a specific poison.
Joe complies, but Henry exposes him to blood, turning him again before Ichabod uses a Shawnee incantation to drive the wendigo's spirit from his body. Irving learns that the only way to break the contract is to murder the man responsible for crippling Macey, which he almost does when the man shows no remorse. However, he realises that the killing would be part of Moloch's plan, and cannot complete the deed. Henry visits Katrina and administers the poison in the form of a spider by forcing her to eat it.
Credits
Adapted from Wikipedia contributors, Sleepy Hollow season 2. HTML formatting and reference markers removed.