Emma Swan, a 28-year-old bail bonds collector, has always been a fiercely independent person since being abandoned as a baby. Her son Henry, who she gave up for adoption years ago, finds and tries to convince Emma that she is Snow White's missing daughter. Henry shows Emma that in the fairytale, Prince Charming and Snow White sent her away to protect her. Emma doesn't believe him and takes Henry back to Storybrooke...
Emma Swan wonders if the residents of Storybrooke, Maine are somehow actual characters from legendary children’s tales. Parallel worlds unravel in this modern take on classic fables where a curse has trapped famed storybook characters in our world.
The second season follows the introduction of magic by Mr. Gold / Rumplestiltskin into Storybrooke, leaving the fate of both the real world and the Fairytale Land that was, intertwined, resulting in new threats emerging.
The third season revolves around the main characters travelling from Storybrooke to Neverland to retrieve Henry Mills, featuring crossover episodes connecting with the spin-off Once Upon a Time in Wonderland.
After six seasons, the residents of the enchanted forest face their greatest challenge yet as The Evil Queen, Captain Hook and Rumplestiltskin join forces with a grown-up Henry Mills and his daughter Lucy on an epic quest to once again bring hope to their world and ours. Along the way, new fairy tale characters and old search for true love, find adventure and once again take sides in the struggle of good against evil, as classic tales are once more twisted and reimagined.