Simone utilizes her informant to track down an arms dealer on the FBI’s Most Wanted list. Brendon investigates a risky lead on a congressman. Cutty and Simone struggle to see eye-to-eye. Tim and Laura find common ground with their similar no-nonsense approach to training rookies.

Garza’s unit gets roped into a complicated kidnapping case involving a forbidden relationship between two rival drug-dealing gangs. Meanwhile, Simone’s love life is heating up; Laura comes face-to-face with her past, and Carter tries to reconnect with his wife.

Simone and Carter get trapped in the tropics while hunting down a suspect on the run. Simone’s unexpected meet-cute with Dina throws a wrench into Cutty’s love life, and Elena’s high-end fashion splurge cracks open an unsolved murder mystery.

When Simone and Carter go undercover to find an international assassin known as The Reaper, a prisoner seeking bail recognizes Carter and nearly blows his cover. Laura and Brendon trace a lead on The Reaper’s assault rifle while Brendon works to heal his relationship with his father. Meanwhile, Simone’s demanding work schedule puts a strain on her relationship with Dina.