The Last of Us was the consensus choice for the best game of 2013. This is despite the launch of new consoles and an even larger rise in quality indie titles.

Naughty Dog and Sony have now released the first story DLC for The Last of Us, titled Left Behind. As previewed over the past few months, the new campaign story puts players into the shoes of Ellie, the young woman who features so prominently in the main Last of Us campaign. Ellie joins Riley, her best friend and a companion who will travel with Ellie as the girls explore the wasteland. The DLC is set in a period shortly before the main game’s story, while Ellie is attending a military school in the Boston quarantine zone.

Along with the content’s launch a new launch trailer has been released. As expected, the video teases that the tone of Left Behind will quickly shift as the realities of Naughty Dog’s post-apocalyptic world catch up with the girls: