When a military veteran suffering from PTSS snaps after the death of his brother in arms, the decorated sniper’s expert abilities push the team to their limits. Also, Crosby’s personal struggles bubble to the surface when the case begins to hit too close to home.

After a former counter-intelligence officer is caught leaking classified information to a foreign government and attacks his former partners, the team must track him down before he escapes the country.

After a rogue militia group opens fire on several teenagers crossing the Canadian border into the U.S., the team races to find the ringleader and his final target. Also, Jess' relationship with his father, Byron reaches a breaking point.

The team chases an unlikely serial killer whose end game takes a shocking turn. Also, Hana returns from medical leave, and Jess and Sarah's relationship continues to evolve.