Captain Scarlett and Her Pirate's Booty is the first DLC for Borderlands 2.

The Vault Hunter has discovered a new area of Pandora named Oasis, a once beautiful ocean front resort which is now a run down, deserted wasteland on the edge of a massive desert. Here the Vault Hunter meets up with the owner of the establishment, a Hunter S. Thompson-like character whose friends are not as lively as they used to be. While helping him out there is a new threat that is discovered...pirates, vicious sand pirates who roam the desert seas, with one of these factions being led by the DLC's namesake, Captain Scarlett.