It could be about the real - life experiences of prisoners, such as their daily lives behind bars, their relationships with other inmates and guards, and the challenges they face in prison.
Another theme is hope. Despite the difficult circumstances, many prisoners hold on to the hope of getting out and starting anew. They might work towards parole or rehabilitation programs with that hope in mind.
Definitely not a true story. 'Prisoners' is a work of fiction crafted by the filmmakers to entertain and engage the audience. It doesn't represent any actual events or people from the real world.
I'm sorry I don't know the specific content of 'prisoners the real story' without more information. But generally, examples could be about a prisoner who overcame his drug addiction while in prison through the prison's rehabilitation programs.