Ichabod and Abbie discover a massive secret buried within the pages of George Washington’s Bible and unearth the shocking true nature of the founding father’s death. Meanwhile, Captain Irving makes a near-impossible decision for the sake of his beloved family that drastically changes his future.

Ichabod and Abbie face demonic creatures that guard a secret crypt and encounter Thomas Jefferson in their quest to fight evil. Meanwhile, Jenny learns a shocking secret about Frank Irving.