Once Upon A Time Season 4 Episode 2
Once Upon A Time Season 4 poster.ABC

ABC's hit fairy tale drama Once Upon A Time Season 4 returns with its 5th episode today at 8 pm.

The episode is titled, Breaking Glass, where Regina reluctantly teams up with Emma to search for the Snow Queen (Elizabeth Mitchell), who is still lurking around Storybrooke.

Click here to watch the episode live stream online.

The episode synopsis reads:

Regina reluctantly teams up with Emma to search for the Snow Queen after Sidney, who is once again Regina's prisoner in the mirror, discovers her whereabouts and agrees to lead her to the location. With Belle babysitting baby Neal, a nervous Mary Margaret and David prepare for their first date night away from their child and find themselves on a mission to track down Will Scarlet, who has escaped from the town jail, and Elsa sees Anna in the Storybrooke woods. Meanwhile, back in the past, young Emma finds herself a kindred spirit when she befriends a girl who, like her, is a runaway orphan.

The upcoming episode will feature a confrontation scene between Emma and Regina, as the former destroyed her chance at happily-ever-after by bringing back Robin-hood's dead wife from the past.

The promo gives us a gloomy preview of what is in store for the fairy tale characters.

Elsa's questions, "What are you going to do", in the promo, and the Snow Queen in her cryptic way says, "I'm going to build a Snow-man."

Watch the promo and sneak-peek here.