In the series finale, Dreyfuss finally has enough power to infiltrate the White House, and his group of minions now has the strength to take action, so it's up to Team Witness to stop him once and for all.
A glimpse of the future reveals a dystopian world if Dreyfuss comes to power, but Team Witness, having learned more about Lara in the process, now has a clearer picture of what it will take to stop the billionaire madman.
A mysterious woman's identity and allegiances test the team's cognitive abilities when she wanders into the vault, while Alex struggles with her complex feelings after finding herself in quite a predicament.
Washington, D.C., is menaced by a monster that haunts its victims with their painful memories and experiences, forcing the team to look for salvation in their own weaknesses. Meanwhile, Jenny forges an unlikely alliance that could save the planet.
A new threat to officials in Washington, D.C., comes in the form of an old adversary of Ichabod's. Meanwhile, Jake's familiarity with the city's network of tunnels could help uncover an important secret about the past.