E3 2011: Gameplay Trailer and Demo Interview for "Bioshock Infinite"

Plot:

The events of the game take place in 1912. The player assumes the identity of Booker DeWitt, a former, disgraced agent of the Pinkerton National Detective Agency, who was dismissed for behavior beyond the acceptable bounds of the Agency. He is hired by mysterious individuals, aware of Columbia's location, and tasked to invade the air-city and rescue a young woman named Elizabeth, who has been held aboard the air-city for the last twelve years. Though DeWitt finds Elizabeth easily enough, he quickly discovers that Elizabeth is central to the city's conflict between these two groups, as each faction seeks to use Elizabeth to turn the tide of the conflict in their favor, forcing DeWitt and Elizabeth to trust each other in order to escape.

Though the game takes place before the events of the previous two BioShock games (occurring from the 1960s to 1970s), Irrational Games has not confirmed if BioShock Infinite shares the same universe with these titles; Ken Levine left the question of the possibility unanswered in an interview stemming from the game's announcement.