Once Upon a Time‘s next episode “Tallahassee” airs Sunday, and in a new sneak peek you can see Emma, Mulan, Hook, Snow and Aurora discuss Jack and the Beanstalk.

In the clip, the five characters talk about the beanstalk which Hook and Emma will soon be climbing, and Emma recounts her memory of the Jack and the Beanstalk fairytale – something about a goose, a cow, and a boy named Jack, right? Well, Hook informs her, the true tale is “a bit more gruesome.”

Former Lost and Alcatraz star Jorge Garcia will play a part in the gruesome, as he is guest starring as a terrifying giant who lives up the beanstalk. But it is an enemy who Emma and Hook will have to defeat to get the compass which will help them make a portal back to Storybrooke.

Once Upon a Time 2×06 “Tallahassee” airs Sunday night on ABC at 8/7c. It will be the show’s first ever Emma flashback episode, and detail the time she spent in Tallahassee – which we’ve previously been told was the longest time she’d ever spent anywhere. We’re going to find out what character she bumped into while there, and maybe even the identity of Henry’s father, so you can’t miss this one!