The first five minutes of BioShock Infinite's Burial at Sea Episode One DLC has been released by Irrational and can be seen below. Obviously, the footage contains spoilers.
Burial at Sea is set in Rapture; the submerged city from BioShock 1 and 2, but has been rebuilt in BioShock Infinite's engine. The DLC comes in two parts and features Booker and Elizabeth who experience Rapture's collapse.
Earlier today, the achievements and trophies for Burial at Sea Episode One were also revealed. The DLC's teaser trailer can be seen here.
When the DLC was announced Irrational's Ken Levine commented:
"So it's a two-part experience… The second part has a slight twist to it. You play Booker obviously in the first one, but we were listening to the fans and we know how they feel about Elizabeth, and we decided we wanted to shift things around a little for the third one, so the player character in the third DLC, you get to play Elizabeth, and the gameplay is quite different as her.
"She's not the tank that Booker is, and we'll see how all the story's coming together."
Burial at Sea Episode 1 and 2 are included in BioShock Infinite's Season Pass.