Classified information leaks and endangers the lives of former U.S. military members; Luca has to make a difficult choice after a family member gets sick.
Toya suffers a breakdown over her unresolved conflicts with Beedy and Casey; Reginae questions whether she can reunite with Armon; Beedy faces Toya and Reginae.
The team works with the DEA for a gang sweep, but a new cartel's arrival in the city threatens massive destruction; Hicks passes an important anniversary.
The team travels to Mexico City to capture a fugitive who escaped Hondo over a decade ago, though his plans to fulfill his years-old promise soon fall apart.
Hondo and Hicks race to find Powell, who went missing in Mexico City with a thermobaric bomb; Deacon injures his pride in a boxing match against Rocker.
Street finds out that a biker club has stolen a cache of armor-piercing rounds and so leads the team on a manhunt before the gang can pull off a deadly heist.
The team launches a manhunt for the crew responsible for a robbery shooting; Deacon's future plans run up against an obstacle; Powell and Alfaro face off.
Deacon ends up at the center of the team's face off with a family of doomsday preppers; Powell struggles with a meeting with the child she gave up for adoption.
The team hunts down an all-female crew after they trick, rob, and murder a series of rich men; Hicks is taken off-guard when his new love suddenly leaves.
Eco-terrorists kidnap the son of an energy company executive, leaving the team to figure out the group's aims before they can execute a rescue mission.