Season 3 of Sleepy Hollow wrapped up the Ichabod (Tom Mison) and Abbie (Nicole Beharie) story, but it wasn't the end of the series. Now the time-lost Ichabod Crane has left Sleepy Hollow and has ended up in Washington D.C. with a new mission and new allies. The trailer below gives us an idea of what to expect as season 4 kicks off on January 6th on Fox.
https://youtu.be/ERZYOa33LJg