A 0.ª temporada de Era uma Vez estreou a 29 setembro 2012.

A 1.ª temporada de Era uma Vez estreou a 23 outubro 2011.

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.

A 2.ª temporada de Era uma Vez estreou a 30 setembro 2012.

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.

A 3.ª temporada de Era uma Vez estreou a 29 setembro 2013.

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.

A 4.ª temporada de Era uma Vez estreou a 28 setembro 2014.

A 5.ª temporada de Era uma Vez estreou a 27 setembro 2015.

A 6.ª temporada de Era uma Vez estreou a 25 setembro 2016.

A 7.ª temporada de Era uma Vez estreou a 6 outubro 2017.

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.