The cinematic intro for upcoming Destiny expansion The Dark Below has been posted on YouTube.

The cinematic was posted by YouTube user Mr Jester6598, who couldn’t explain the clip’s origin.

“I cannot explain how to get access to this video on the game as it was due to an error that I was able to see this,” reads the video’s description.

“As far as I can tell, this is the first video put on YouTube of this.”

The Dark Below includes new story missions, PvP maps, two Strike missions (Xbox players only get one), and a new raid wherein players battle Crota on the moon.

It’s out on December 9.