Once Upon a Time Sneak Peek: Dark Emma Uses Excalibur to Save [Spoiler]

This Sunday on ABC’s Once Upon a Time, Dark Emma gets to wielding the mighty, restored Excalibur — in the name of saving a special someone’s bacon.

As seen in this sneak peek from the first of Sunday’s two episodes (which begin unspooling at 8/7c), the ever-nutty King Artie gets into a scuffle with one of our (anti-?)heroes and is about to go in for the kill… when Dark Emma unexpectedly intervenes.

Who does Emma rescue? And why did she really put Excalibur back together again? Press play above to find out.