The future is now and the year is 2027. You play Adam Jensen, an ex-SWAT specialist hired to oversee the security needs of Sarif Industries, one of America’s most experimental biotechnology firms. When a team of black ops mercenaries attack Sarif's headquarters killing the very scientists you were hired to protect, everything you thought you knew about your job changes. After being mortally wounded during the attack, you have no choice but to undergo radical life-saving surgeries that transform you into a mechanically enhanced being. Now hot on the trail of those responsible for the attack, you soon find yourself chasing down leads all over the world, never knowing who you can trust. The men pulling the strings will stop at nothing to ensure mankind's evolution follows a particular path. You need to discover where that path lies. Because when all is said and done, the decisions you take, and the choices you make, will be the only things that can change it.