Set approximately 10 years after the events of the original BioShock, the halls of Rapture once again echo with sins of the past. Along the Atlantic coastline, a monster has been snatching little girls and bringing them back to the undersea city of Rapture. Players step into the boots of the most iconic citizen of Rapture, the Big Daddy, as they travel through the decrepit and beautiful fallen city, chasing an unseen foe in search of answers and their own survival.