Watch Once Upon a Time Full Episode Online for Free in HD @ br First Air Date : October 23rd, 2011br Last Air Date : September 27th, 2015br Number of Seasons : 5br Number of Episodes : 90br Networks : American Broadcasting Companybr Genres : Drama, Fantasy, Mysterybr br Storyline:br Once Upon a Time is an American fairy tale drama series that takes place in the fictional seaside town of Storybrooke, Maine, in which its residents are actually characters from various fairy tales that were transported to the “real world" town and robbed of their real memories by a powerful curse. Episodes typically feature a primary storyline in Storybrooke, as well as a secondary storyline usually from another point in a character's life before the curse was enacted.