While Weller and Nas chase a fugitive whistleblower in Bulgaria, Jane goes on a Sandstorm mission with Roman. Reade and Zapata must deal with an urgent matter.

Rich Dotcom returns to the FBI when he needs help with a pressing issue.

After Jane discovers that Sandstorm is gearing up for an imminent attack, she risks everything to send a secret SOS to her FBI team.

Patterson is missing... and a newly amnesiac Roman is on the loose. Jane and Weller must race Shepherd – and the clock – to find them before it's too late.

When an unusual tattoo leads back to Roman, the team must decide whether to send him into the field...to go undercover with a dangerous biker gang.

With Nas's help, Weller and Jane finally come face-to-face with Nas's inside source within Sandstorm, and square off with an old foe.

Jane and Weller go undercover on a high-stakes scavenger hunt run by powerful hackers. Shepherd journeys to Thailand to procure a dangerous weapon.

Zapata's transgressions catch up to her, sending her to jail alongside a potentially powerful Sandstorm asset named Devon. Weller and the team must go to exceptional lengths to help Zapata out.

The team finally cracks a member of Sandstorm, leading to a huge breakthrough in uncovering Phase Two.