Regina and Mr. Gold play dirty politics and take opposite sides when Emma runs for a coveted Storybrooke public office against Sidney. Meanwhile, back in the fairytale world that was, Rumplestiltskin tries to track down the ultimate power source in order to help his son avert the horrors of a meaningless war.
Feeling their pain from having lived through the same experience, Emma desperately tries to help two homeless children find their birth father before they're separated and put into the foster care system. Meanwhile, back in the fairytale world that was, the Evil Queen coerces Hansel and Gretel into stealing an important artifact from a blind witch.
Mary Margaret and David continue to grapple with their unrequited love, and Emma and Regina grow suspicious over a mysterious new stranger in town. Meanwhile, in the fairytale land that was, Snow White yearns to ease her breaking heart as Prince Charming's wedding to King Midas's daughter approaches.
A dejected Sidney enlists the aid of Emma to help uncover evidence that could expose Mayor Regina as the corrupt person she really is to the townspeople of Storybrooke; and Mary Margaret and David continue their secret rendezvous while trying to figure out a way to unleash their unrequited love. Meanwhile, back in the fairytale land that was, King Leopold, who is the father of Snow White and married to the Evil Queen, stumbles upon a magic lamp and is granted three wishes by a Genie - who warns the king to be careful what he wishes for.
After Mr. Gold's house is robbed, Emma keeps a close eye on him when it looks like he wants to track down the criminal and dole out some vigilante justice as payback, and Valentine's Day finds Mary Margaret, Ruby and Ashley having a girls' night out. Meanwhile, in the fairytale land that was, Belle agrees to a fateful deal to give up her freedom in order to save her town from the horrors of the Ogre war.
With their love for each other growing stronger, David finally agrees to tell Kathryn about his relationship with Mary Margaret and put an end to his loveless marriage. Meanwhile, in the fairytale land that was, while runaway groom Prince Charming searches for Snow White, he agrees to aid Abigail on a dangerous mission to recover something precious that was lost to her.
Mary Margaret teams up with Leroy, Storybrooke's resident trouble maker, to help him sell candles during the Miner's Day Festival. Emma investigates Kathryn's sudden disappearance. Meanwhile, in the fairy-tale land that was, the Seven Dwarfs are made known as well as Grumpy's romance with the beautiful, yet clumsy, fairy Nova.
Mary Margaret hires Mr. Gold as her attorney when Emma is forced to arrest her for the suspected murder of David's wife, Kathryn. Meanwhile, back in the fairytale land that was, Prince Charming sets out to stop a determined and unhinged Snow White, whose memory is still clouded by Rumplestiltskin's potion, from assassinating the Evil Queen.
Emma leaves in search of Mary Margaret and instead finds herself trapped in the house of a seemingly dangerous man named Jefferson. In fairy-tale land, the Queen calls upon the Mad Hatter to help her find something she has lost in exchange for his daughter's safety.
The Evil Queen convinces Snow White to eat her apple. Meanwhile in Storybrooke, she finds a way to retrieve the fruit to get rid of Emma who is ready to make a deal with Regina to leave town while maintaining visitation rights with Henry.
The curse is broken and the people of Storybrooke, Maine, remember their past. Emma is reunited with her parents. However, just as celebrations get into swing, Mr. Gold has another dark ploy up his sleeve. Plus, Regina's past actions appear to have consequences.
Prince Charming desperately searches for a way to get Snow White and Emma back from the Enchanted Forest. Meanwhile, the Seven Dwarves discover that if anyone leaves Storybrooke, they will lose the memory of their true identity.
Emma, Snow White, Mulan and Aurora head for Snow White's castle to find the wardrobe that sent Emma to earth as a baby hoping they can use it to get back to Storybrooke. In the past, Snow finds out what the gender of her first born will be.
As Emma and Hook climb a beanstalk in search of a magic compass, Emma thinks about her past and how she met Henry's father. Meanwhile, Aurora in the Enchanted Forest and Henry in Storybrook both have the same nightmare.
When a murder occurs in Storybrooke on a full moon, Spencer (King George) tries to bring the town against David by implicating Ruby. Back in fairy tale land, Red finds a pack of wolves who adopt her into their family.
Aurora attempts but fails to communicate with Henry in the Netherworld in order to give Mary Margaret and Emma a portal back to Storybrooke. As a result, Mary Margaret and David go to the Netherworld themselves to try and communicate.
28 years ago, Regina enlists the help of Hook to find and kill her mother, the Queen of Hearts, to stop her from traveling to the new world. Meanwhile, in the present, Emma, Snow, Mulan, and Aurora head to Rumpelstiltskin's old cell to retrieve the key to their return to Storybrooke.