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.

After a bank robbery turns violent, Abbie and Ichabod embark on a hunt for a mysterious silver coin that has more power than meets the eye. Captain Frank Irving is put in the position where he must choose between his family and the greater good. The Mills' sisterly bond is put to the utmost test.

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

A series of mysterious deaths at Tarrytown Psych leads Abbie and Ichabod to discover that an especially surprising spirit is involved.

After the mysterious death of an art restorer at the Sleepy Hollow Historical Society Soiree, Ichabod and Katrina are reminded of a dear friend from their past - Abigail Adams. Meanwhile, Abbie is shocked by someone's visit to the police precinct.