Crane and Jenny begin to navigate life following the unexpected passing of Abbie Mills. When he finds himself in the nation's capital, Crane must forge unlikely partnerships in his quest to find the next Witness, as he discovers that there is more evil at play than he realized was possible.

After a big discovery, Crane and Jenny struggle with breaking some difficult news to Diana. Meanwhile, the team learns that there may be witchcraft involved in a new case. Can Crane find a way to tell Diana what he knows?.

When one of Crane's greatest foes comes to town to threaten the safety of Washington's highest officials, the team must work quickly to find a solution. Jake's extensive knowledge of the tunnels becomes an important piece of the puzzle as they uncover a secret from the past that could lead to answers.

When a monster fashioned to make its victims live out their most personal and haunting memories hits D.C., the team must find its weakness to save one of their own. Meanwhile, Jenny forms an unlikely bond that could be important in saving the world. Can the group prevail against one of the most insidious monsters yet?.

As Dreyfuss gets closer to making progress on his mission, important parts of his past come to light. His former partner returns to settle the score from years before and it becomes evident that Dreyfuss' involvement in the supernatural is not something new. Don't miss learning how Malcolm Dreyfuss came to be.

When the team realizes that the talisman which Dreyfuss seeks might be hidden in the most obvious of places, they race against the clock to find it before the evil forces are aligned. Then, with heightened emotions and bittersweet memories, Jenny and Crane revisit important parts of their past as they return to Sleepy Hollow.

Just before Molly's 11th birthday, her father returns from duty. As Diana begins to wonder if her ex might be ready to be a part of his daughter's life full-time, the team has a shocking realization.

When internet sensation Logan Macdonald comes to town, a supernatural infection hits, via a viral video. Meanwhile, Molly has a frightening vision that could predict a bleak future. Can the team cure the curse before it takes over town?.

When a monster appears that resembles Molly's childhood imaginary friend, Diana realizes her daughter's life as a Witness will be anything but normal. Meanwhile, Molly gets her chance to see the vault for the first time.

When one of Diana's mentors is targeted by a horrific monster, she decides that the team must channel all of their power toward stopping Dreyfuss. Meanwhile, Dreyfuss and Jobe have a breakthrough on a project of which Team Witness may not yet be aware.

When a mysterious woman finds her way into the vault, the team struggles to understand who she is and with whom her allegiances lie. Meanwhile, Alex must come to terms with her complicated feelings when she finds herself in a tight spot. Can Team Witness handle what might be revealed?

With a glimpse into the dystopian world that could be if Dreyfuss comes to power, the team learns more about Lara. Knowing what is at stake, can Team Witness put a stop to the billionaire mad man before it's too late?

Dreyfuss finally garners enough power to infiltrate the White House, and his group of minions grow strong enough to take action. Can Team Witness stop Dreyfuss in time?