After receiving shocking news about Avery’s father, Jane and Weller must hunt down an elusive criminal. Meanwhile, Patterson’s father (guest star BILL NYE) helps the team (and his daughter) in the lab.
While Jane and Weller partner with a mysterious man from Jane's past to find a missing person, the team races to stop an arms deal.
While Jane struggles to cope with a secret from her past, the team races to prevent an international crisis.
In the season three finale, Jane and Weller hunt Roman back to where it all started. Can they finally stop him?
Weller and his former FBI partner reunite for a dangerous undercover mission while Zapata interrogates a past foe.
