A police officer who serves in the Marine Corps Reserves is faced with an ethical dilemma when it comes to helping his brother in prison.


Henry Alex Rubin





Cast overview, first billed only:
Jai Courtney ... Callahan
Nat Wolff ... Oyster
Finn Wittrock ... Jaeger
Arturo Castro ... Snowball
Beau Knapp ... Milk
Leighton Meester ... Clara
Lance E. Nichols ... Balfour
Dane Rhodes ... Capros
Rob Mello ... Tony
Rachel Hendrix ... Rachel Milkowski
Adrienne Loosemore Adrienne Loosemore ... Ellen Milkowski
Eric Hunter Eric Hunter ... CPL Bunch
Rudy Reyes ... Captain Vera
Sylvia Grace Crim ... Carrie
Ashton Leigh ... Val


The story sees Courtney as Cal, a by-the-book police officer who makes ends meet as a Marine Corps reservist along with his rowdy and inseparable group of childhood friends. When Cal's younger, reckless half-brother Oyster (Wolff) accidentally kills a guy in a bar fight and tries to flee, Cal forces him to face the music. After an unfair sentence, Oyster fights for survival in a dangerous Pennsylvania prison system while Cal and his friends are deployed to fight the lethal insurgency in Iraq. Overseas, Cal's world is shaken, and after he barely makes it home alive, he resolves to break Oyster out of prison - no matter the cost.

Plot Summary | Plot Synopsis

Plot Keywords:

police | See All (1) »


Action | Drama

Motion Picture Rating (MPAA)

Rated R for pervasive language, some violence and disturbing images | See all certifications »

Parents Guide:

View content advisory »

Did You Know?


Title released on DVD in Australia is Brother in Arms. See more »


Callahan: What you know about running a business?
Oyster: Lots. There's this book called The Seven Habits of Highly Successful People, and it teaches all the secrets of success.
Callahan: Oh yeah? And what are they?
Oyster: I haven't read the book yet.
See more »

User Reviews

good enough
4 October 2019 | by ops-52535See all my reviews

Its not an all at stake action thriller youre delving into, its more like a rough tough emotional drama between young men and their buddy pals. its not filled with romance, just some featherly ones, but the emotions may be turned on by some of the story.

its a film about family, brotherhood, deadly pranks, prisoners,soldiers, grunch and forgiveness. though the plot has some abrubt and short cutted shifts that could have been an audience blockbuster if avoided and comleted the right way, the acting are well above average, especially in the first half.

its a kind of a sore revenge/redemtion story that will be condemned by some and hailed by others. the grumpy old man didnt turn it of and did not take any breaks in the viewin , so it isnt that bad at all. a 6 at the strong side.recommended

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Release Date:

4 October 2019 (USA) See more »

Also Known As:

Semper Fi See more »

Filming Locations:

Louisiana, USA


Box Office

Cumulative Worldwide Gross:

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Company Credits

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Technical Specs




Aspect Ratio:

2.35 : 1
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