Jane reels from a series of massive revelations about her tattoos and grapples with whether to trust Oscar. Meanwhile, a tattoo leads the team to a shocking discovery in the Black Sea.

When a mysterious young girl with a tattoo connection falls into Borden's care, he brings her case to the FBI team -- but her ties to a terrorist organization prove dangerous for all of them. Meanwhile, a conflicted Jane starts to grow close to Weller again, and friendship blossoms between Borden and Patterson.

Weller searches for the truth within a heartbreaking and confounding assertion. Jane reaches out to a former suspect for help with Oscar. Meanwhile, the rest of the team struggles to help a friend...

After a prominent politician is almost killed during a rally, Weller and the team must work with U.S. Marshal Allie Knight to take down a mob leader.

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

While Jane struggles to cope with a secret from her past, the team races to prevent an international crisis.