Escape from Sokovian Prison

"They kept me in a concrete box, Joy. And took me out to question me. More often rape me. Torture me. Make me watch while they killed the rest of my squad. And then, after 22 months, I was freed. I always thought Mary convinced someone to get her out. And she thought I fought my way out. Well, we were both wrong."

- Mary Walker to Joy Meachum

The Escape from Sokovian Prison was the mass slaughter of Sokovian Armed Forces soldiers executed by Sergeant Mary Walker in order to break free from her incarceration.

Background
While serving with the United States Army, Sergeant Mary Walker and her squad were stationed out in Sokovia where they were eventually captured by the Sokovian Armed Forces. Walker and the surviving members of her squad were locked in a Sokovian prison where Walker was tortured and raped repeatedly by the Sokovian military, while also being forced to watch her squad members being executed before her eyes. This experience caused Walker terrible emotional distress, however she refused to allow herself to die in that prison, despite the torture and sexual abuse for almost two years. As a result she created a split personality named Mary in an attempt to cope with the trauma.

Escape
""A bloody mess" is how the sergeant major described the carnage at the camp. And Mary Walker's fingerprints were on the knives."

- Mary Walker to Joy Meachum

Eventually Walker was removed from her cell and became aware that the Sokovian military were preparing to execute her. Unlocking a different personality within her mind, Walker broke free and armed herself with Twin Machetes, which she used to slaughter the soldiers until she was the only person left standing. Walker was eventually discovered by the United States Armed Forces, although she had no memory of how the men around her had died. Her sergeant major described aftermath of massacre as "bloody mess".

Aftermath
"Your friend Joy came round, and she said, she wanted you to protect her, which made me remember all the times that you have protected me. Back in Green Bay, in Sokovia. You got us out of that hole, so thank you for that."

- Mary Walker

As a result of her ordeal, Walker was diagnosed with and given a medical discharge from the army. Walker moved to the New York City and became mercenary and private investigator. Walker had to visit psychiatrist Paul Edmonds and take medecine to stabilize her condition.

Her "Walker" personality was sure that "Mary" somehow convinced someone to get her out of the prison. However, she watched recorded message from Mary who thanked Walker for escape. Then she realized that she had unknown third personality who brutally killed all Sokovian soldiers and made their way out of the incarceration.