You wanted more BioShock Infinite? Well today my friends, you got it. The first episode of Burial at Sea arrived, and with it came a new trailer.

Set in an alternate timeline than that of BioShock Infinite, the events of Burial at Sea take place in Rapture before its underwater society collapsed. Booker is there, and so is Elizabeth, but there's a new mystery at foot involving a young girl named Sally. It's not clear just how much this version of Elizabeth knows about her abilities and her connection to this world's Booker, but as with any great noir story, the dame definitely knows more than she's letting on.

Irrational has returned to its roots in more ways than one with Burial at Sea, as the DLC will also see the weapon wheel make a comeback, and more traditional Plasmids are here as well. As you can see in the trailer above, the always creeptastic Sander Cohen makes an appearance, and it's only a matter of time until the Little Sisters and Big Daddies start bullying their way around the underwater city.

Burial at Sea is available on PC, Xbox 360 and PlayStation 3 for $14.99, but if you happened to pick up the season pass, you'll be able to download it for free.

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