An Air National Guard officer, Col. John Sittenfeld, is abducted. The bar's manager says that he got in an argument with a tough guy, Derek White, recently discharged from the Air National Guard. White tells Maggie and OA that he took off after the confrontation. He identifies a van he saw near the bar. The analysts track the van, then the team finds Sittenfeld tortured and shot. The abductors took SIttenfeld's access card and broke into the base's armory, stealing anti-tank missiles. Sittenfeld dies. Prints on a dolly come back to Ray Nichols. Tiffany asks Scola if he's looking to change jobs. Nichols refuses to talk. Nichols has worked off the books for Adem Polat, a person of interest to ATF. To help her husband, Nichols' wife Mila agrees to wear a wire to entrap Polat. Scola and Tiffany clash over the directions he gives to Mila. She asks Adam for the money he owes Ray. He's on to Mila. Scola and Tiffany burst in. Polat runs but Tiffany shoots and kills him. Maggie and OA search Polat's garment factory. They discover an arsenal but the missiles are missing. Using Polat's phone, Elise located a restaurant he owns. Maggie and OA find millions of dollars, likely from the sale of the missiles. The bills are marked by DEA, investigating a Mexican cartel. Scola and Tiffany convince Nichols to talk. Nichols says the missiles were sold to Pascual Santos, who wanted a weapon that could penetrate an armored van. Isobel's hunch leads to identifying Santos's target, a witness in a drug-trafficking trial. They locate the van then search for the missiles. Scola notices an open door and finds the missiles being used in a parking garage. He shoots two of the men, then OA gets the third. They secure the missiles.