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?