
Jakub and his brother Vladimir, teenagers desperate to escape poverty, enlist in the Cossack army. Meanwhile, the brothers Elias and Roman survive by stealing horses. When their paths cross, a deadly clash leaves Vladimir dead, igniting Jakub’s burning thirst for vengeance. A relentless pursuit follows, sparing no one.
Does In the Arms of My Enemy have end credit scenes?
No!
In the Arms of My Enemy does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of In the Arms of My Enemy, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Grégoire Colin
Roman

Morgan Marinne
Piotr

Thomas Coumans
Anton

Corentin Lobet
Grigori

Igor Skreblin
Fentik

Jean-Luc Couchard
Le garde-frontière

Grégoire Leprince-Ringuet
Vladimir

Adrien Jolivet
Jakub

Nicolas Buysse
Le cosaque au tambour

Mylène St-Sauveur
Virina

François-René Dupont
Elias

Benoît Randaxhe
Maska

Amaury Smets
Elias enfant
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Read the complete plot summary of In the Arms of My Enemy, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Set in the year 1810, in a distant Eastern country, the film centers on two young brothers just stepping into the harsh world of the Cossacks: Jakub and Vladimir. Jakub is strong, a natural protector who stands up for his younger brother, while Vladimir is softer and more fragile, often left to fend for himself in the shadows of their new, rigid life. As the pair train, Jakub’s quick temper lands him in trouble, and Vladimir becomes a frequent target for punishment and abuse by those who wield authority in this brutal environment.
When the brothers graduate from training, they glimpse the brutal reality of their role and the violence it demands. They participate in a Cossack raid on a village where the aftermath is nothing short of devastating: women and children are killed, and the perpetrators revel in the pillaging and destruction. The experience leaves Jakub and Vladimir sickened by what they’ve become a part of, and they decide to go AWOL, choosing loyalty to each other over a system that rewards bloodshed.
In a separate, harsher thread of the story, two other young men—Elias and Roman—live on the edge of society, making a living by stealing horses from the woods. Their world intersects with Jakub and Vladimir’s when they spot the brothers at a pool, and in a moment of reckless crossing of paths, Elias and Elias’s cohort seize Jakub and Vladimir’s horses. What follows is a tense pursuit: Vladimir and Jakub chase the thieves through the wilderness, a pursuit that culminates in a fatal clash when [Roman] kills Vladimir during their confrontation.
The death devastates Jakub, setting him on a scorched-earth quest for vengeance. Consumed by the need to avenge his brother, he tracks Roman and Elias, driven by a single, piercing objective. Yet the pursuit is morally complex: the path to revenge threatens to implicate him further in the cycle of violence, and he discovers that striking at Roman might require him to strike at Elias as well. The narrative builds toward a closing, dramatic finale that tests loyalty, justice, and the cost of reclaiming one’s honor.
Throughout, the film explores how loyalty binds people together even as it subjects them to brutal discipline, and how the impulse for revenge can push individuals to the edge of what they are willing to become. The stark landscapes, the cold discipline of the Cossacks, and the raw emotional beats drive a story that is unflinching in its portrayal of survival, sorrow, and the elusive line between justice and vengeance.

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