A new trailer has surfaced from the depths of below for BioShock Infinite's second story DLC, Burial at Sea - Episode Two. Be warned, there are spoilers in here.

Taking a look at some behind the scenes work, developer Irrational Games gives an overview of what you can expect from the new DLC, which allows you to control previous companion Elizabeth from the main storyline, though this time in the depths of Rapture.

"Go behind-the-scenes of BioShock Infinite: Burial at Sea -- Episode Two with creative director Ken Levine and the voice cast behind some of the major characters from both BioShock and BioShock Infinite."

Check it out below, and once again be warned on possible spoilers. BioShock Infinite: Burial at Sea - Episode Two will be available March 25th as either a separate purchase or through the game's Season Pass.