Roback faces disciplinary action, Alvarez deals with trauma on the job and learns shocking news from home, and Roback and Davis's money-making scheme doesn't go as planned.

Roback, Davis, and Petrocelli make their way back to base through treacherous desert. Roback makes a grand gesture to help out Alvarez, complicating things with Durkin. Holloway takes a special interest in one of her patients.

Col. Austin brings the hammer down hard on Roback, Davis, and Alvarez. Davis brokers the big fight with Sasquatch. Qasem helps Holloway at her medical clinic.

Roback, Davis, and Alvarez go on a mission to find Qasem. Alvarez makes an unexpected friend. Roback opens up to Durkin, and tries to salvage the fight with Sasquatch.

Roback scrambles to keep a promise. Sasquatch reminds the guys they have unfinished business. Holloway has plans to help Qasem's village.

A visiting dignitary arrives on base; Davis seeks a new side hustle as pressure from home becomes unbearable; Durkin and Sasquatch have a fight about their future.

A coordinated attack catches the base by surprise. Davis and Roback stumble upon an unusual operation in the Afghan hills. Alvarez helps Hazara.

Roback and Davis attempt a seemingly impossible rescue through an old mine field. SecCorp accelerates its plan. Durking steps up to help Petrocelli.

The gang discovers the solution to many of their problems, but getting their hands on it won't be easy. Holloway gets a surprise visit. Davis struggles with a major decision.

The gang heads deep into Taliban country to recover the lost quarter of million dollars. Colonel Austin makes his final push against SecCorp.