Another soldier in the army of evil, the Sandman, seeps into the dreams of the residents of Sleepy Hollow. By infiltrating their minds at night, he tortures them to the brink - all because they, at one time, turned a blind eye to justice. When the Sandman seemingly sets his sights on Abbie, she is forced to begin to face her past - and her institutionalized sister Jenny. With Ichabod by her side, and her life at stake, the duo must try to defeat the Sandman and continue their fight against evil.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
A psychoanalyst connected to the Mills sisters mysteriously commits suicide and Crane and Abbie Mills visit Jenny at the institution. When others commit suicide as well, the Witnesses learn that the source of the mysterious deaths is the Mohawk dream spirit Ro'kenhronteys, or the Sandman. By entering the dream world of this spirit, they are able to resolve the problem and confront their past guilts and atone for them. When Mills goes to re-visit her sister, she learns that Jenny has escaped.