While Vic searches for his wife and children, the Strike Team allow more drugs into Farmington through a corrupt connection. But when their latest shipment turns bad, the Team heads to Tijuana to uncover the person behind the poisoned cocaine. Meanwhile, Dutch and Claudette try to track down the man responsible for fire-necklacing the leaders of two separate gangs.

David works with Vic and the Strike Team to take down a dealer giving heroin to school kids, while Dutch and Claudette help a woman find her Alzheimer addled mother.

Vic and Emma try to help a woman who's in an abusive relationship. Vic and the Strike Team begin to make plans for the money train take down, even though the greenlight still has them on their toes. When David tells Dutch that he embarrassed the department with the Bob and Marcy case and that Claudette is now lead on all their cases, he's forced to take any action necessary to prove himself in a new homicide. Danny finally makes a stand against Yassirah.

With Ronnie's face healed he comes up with a plan to take down the Money Train, and the Strike Team is all in. Unfortunately, a federal criminal comes back to Farmington, and the Team has to use every connection trick, and resource to bring him in to prove the Barn is still a force. Meanwhile, Dutch and Claudette investigate the rape of a young girl which leads to information that puts the case in a new light. Plus, an old friend from the past reappears to make Julien's life hell.

When a gang execution hits close to home for Claudette, Vic, Tavon, and Dutch work together to find the culprit before anyone else gets hurt. Shane, Lemonhead, and Ronnie are forced to choose between hitting the money train without Vic or letting it go. Meanwhile, Danny receives some life changing news and Julien's harassment reaches a whole new level.

The newly arrived Decoy Squad and the Strike Team go head to head in the investigation to solve a car-jacking case. Dutch gets in over his head on an attempted murder case.

Aceveda finds himself in a near fatal confrontation, and enlists Vic to help him take down the suspects in order to help service his own personal agenda. Meanwhile after losing her position of power, Claudette rejoins Dutch on the search for the cuddler rapist as they get a stunning break in the case.