Will uncovers the missing link between Truxton and Hadas's death; Katherine discovers the truth behind her husband's suicide.
API joins forces with the FBI and CIA to locate a terrorist before he strikes; Ingram uses an unlikely source to keep Katherine safe
Will gets a special assignment from Truxton; Tanya is asked to rejoin the team to help locate Kateb; a threat leaves Katherine afraid to leave her house.
Tanya is sent to rehab. Will secretly reaches out to Katherine and uncovers David Hadas's last project. Ingram grows more suspicious of Truxton.
Will decides to move out of his apartment. A new analyst joins the team. Katherine reaches out to Tom's ex-wife for answers about his past.
Miles and Tanya are asked by the CIA to oversee an interrogation of an Al Qaeda member they have in custody; Will takes a closer look at Atlas MacDowell; a mysterious envelope arrives at Katherine's.
A security breach at API leads the FBI to put the department on lockdown; Katherine suspects her home is no longer a safe haven for her.
Will receives an unusual and surprising offer from Ingram; Katherine uncovers a link between Tom's death and that of another suicide victim; Maggie agrees to let Craig take Sophie for an evening.
Will suspects someone at API may be behind the ongoing problems; Katherine's faith in Wheeler takes a hit, so she considers taking matters into her own hands.
Truxton invites Will on a business trip to DC, leaving the team to make a very important governmental decision on their own.  Katherine’s attempt to move on is derailed when she finds a suspicious voicemail on Tomâ...
Katherine and Wheeler share their grief and confusion over Tom’s suicide and find themselves closer than expected.  Maggie’s ex-husband returns asking forgiveness. David’s son visits Will, leaving him with yet ...
Will faces his first day as the boss to his former teammates. Â While struggling to maintain authority, he pieces together messages left for him by David. Â Katherine learns Tom had a secret life.
Will suffers a shocking tragedy. While he considers leaving his job at API, he begins to uncover clues that point to a sinister conspiracy. Katherine questions her billionaire husband's unexpected suicide.