Violent Things (слэш)

Tony Stark was eight years old when he was taken from his family. Through years of deadly trials, cruel treatments, and tireless training, he is forever changed… and not for the better.
When intruders stumble upon his prison and enlist his help to get away, Tony doesn’t know what to believe anymore. He craves freedom, but is he willing to let himself hope? Or will he return to more comfortable instincts, proving to those determined to save him just how monstrous a man can be?
Bucky Barnes is an Avenger now, found just in time to save the world. Though he’s free, he’s plagued by nightmares from his time spent trapped as the Winter Soldier. Despite his best efforts, he hasn’t managed to move on.
When the team is assigned to check out an abandoned HYDRA base, he doesn’t expect much trouble. But then it all goes to shit, forcing him to confront his past head-on, and he doesn't know how they’re going to make it out alive. And their newest companion—a hostage/guide with a grim sense of humor, aggressive tendencies, and an uncomfortably familiar face—isn’t exactly filling him with confidence.