Adventure Time (2010)

S5E48 Betty

When a spell goes awry, the Ice King transforms back into his true self, Simon. Determined to reconnect with his long-lost fiancée, Betty, he enlists the help of Finn, Jake, and Marceline. Together, they embark on a quest to navigate the challenges of Simon's past, hoping to reunite him with the love he’s lost. As they face obstacles along the way, friendships are tested and memories come flooding back, leading to an emotional journey of love and redemption.