"Once Upon a Time" is a fantasy television series that aired from 2011 to 2018. The show intertwines classic fairy tales with modern-day life, focusing on the town of Storybrooke, where characters from various stories live without memory of their true identities. The main character, Emma Swan, discovers her connection to these tales and her role in breaking a curse that has trapped them. The series features well-known characters such as Snow White, Prince Charming, and Rumpelstiltskin, each with their own backstories and challenges. As the plot unfolds, themes of love, redemption, and the battle between good and evil are explored through the characters' journeys.