ABC will host a two-hour special for the network’s hit series ‘Once Upon a Time.’ Elizabeth Mitchell (“Lost”) is set to guest stars as the Snow Queen in the new episode called “Smash the Mirror.” ABC ins’t giving away too many details at this time, but the story will focus on Arendelle when the Snow Queen tries to pit Elsa and Anna against each other. According to the episode’s description this won’t be as easy as the Snow Queen may have hoped, and will sink to “drastic measures” in order to achieve her goal.

Meanwhile, in Storybrooke Emma’s powers are out of control and her fear of hurting loved ones pushes her away from everyone she cares about. In her confusion Emma turns to Gold for help getting her powers under control. Gold tells her about a way to get rid of her powers altogether and Hook tries to put a stop to it. Robin Hood recruits Will Scarlet to assist him on a mission and Mary Margaret and David search for Emma in this special two hour “Once Upon a Time” airing SUNDAY, NOVEMBER 16 (8:00-10:00 p.m., ET) on the ABC Television Network.

“Smash the Mirror” is written by David H. Goodman and Jerome Schwartz and directed by Eagle Egillson and Ralph Hemecker.

“Once Upon a Time” stars Ginnifer Goodwin as Snow White/Mary Margaret, Jennifer Morrison as Emma Swan, Lana Parrilla as the Evil Queen/Regina, Josh Dallas as Prince Charming/David Nolan, Emilie de Ravin as Belle, Colin O’Donoghue as Hook, Jared S. Gilmore as Henry, Michael Socha as Will Scarlet and Robert Carlyle as Rumplestiltskin/Mr. Gold.

Guest stars include Georgina Haig as Elsa, Elizabeth Lail as Anna, Scott Michael Foster as Kristoff, Timothy Webber as Apprentice, Raf Rogers as Arendelle Servant, Lee Page as Arendelle Guard #1, Patrick Roccas as Arendelle Guard #2 and Elizabeth Mitchell as Ingrid/Snow Queen.