Borderlands 2: Headhunter Pack 1 - TK Baha's Bloody Harvest

In TK Baha’s Bloody Harvest, you’ll be tasked by the eponymous zombified corpse to discover the pieces of a key that will lead you into the heart of the Pumpkin Kingpin’s pumpkin patch (try saying that 3 times), where you will confront the Kingpin himself in an epic battle to claim his giant pumpkin head as your own.