Believing there isn't room in Storybrooke for both her and Regina, the Evil Queen sets out to eliminate her other half using Robin to bait the trap. Hook, determined to make things work with Emma, turns to his old friend Capt. Nemo for advice, but Gideon torpedoes his plan before he's able to set things right. In a flashback to the Enchanted Forest, the Evil Queen learns a surprising lesson about the true source of her misery.