2K Games And Irrational Games have announced BioShock Infinite, the next chapter in the BioShock franchise.

In BioShock Infinite, you play Booker Dewitt, a disgraced former Pinkerton agent 'who gets things done'. Visited by a mysterious man in your room/office above a bar, you're hired to find Elizabeth, who has been imprisoned in the lost city of Columbia for 15 years. Your employer somehow gets you to Columbia and you find Elizabeth, but getting her out of the city is hugely problematic. She's got special powers, she's at the center of the international conflict, and you have to fight together to escape the city in the sky.

Originally conceived as a floating symbol of American ideals at a time when the United States was emerging as a world power, Columbia is dispatched to distant shores with great fanfare by a captivated public. What begins as a brand new endeavor of hope turns drastically wrong as the city soon disappears into the clouds to whereabouts unknown.

The player assumes the role of former Pinkerton agent Booker DeWitt, sent to the lost city to rescue Elizabeth, a young woman imprisoned there since childhood. He develops a relationship with Elizabeth, augmenting his abilities with hers so the pair may escape from a city that is literally falling from the sky. DeWitt must learn to fight foes in high-speed Sky-Line battles, engage in combat both indoors and amongst the clouds, and harness the power of dozens of new weapons and abilities.