"Have you ever seen an ogre?" - Mulan
"Pretty sure I've dated a few." - Emma

Once Upon a Time will take viewers back to the Enchanted Forest on "Lady of the Lake." What can we expect to go down there?

For starters, Snow, who is sneak-attacked by a princess in this first look at the episode:

Emma, meanwhile, will be a bit out of her element in a place where few are familiar with guns and ogres run amok. Yes, ogres...

Mulan will also be learning a lot. For instance: What the heck is this firearm contraption? Some kind of magic? Watch the final clip now and be sure to visit TV Fanatic Sunday night for a full review...

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.