Amphibia (TV series)

Amphibia is an American animated series created by Matt Braly for Disney Channel. It premiered on June 17, 2019. The series was announced that it will have 3 parts. The series features the voices of Brenda Song, Justin Felbinger, Bill Farmer, and Amanda Leighton.
The third and final season of Amphibia premiered on October 2, 2021 with the series finale airing on May 14, 2022.
Premise.
Season 1.
After Anne is peer pressured into stealing a mysterious music box on her 13th birthday, it magically transports her and her two best friends Sasha Waybright and Marcy Wu to the world of Amphibia, a wild marshland tropical island full of anthropomorphic amphibians and threatening creatures, where they are separated (Anne transported to a small swampy forest, Sasha to Toad Tower, and Marcy to Newtopia). Anne, after a month of living in a cave, is taken in by the Plantars, a family of frogs that consists of excitable young Sprig; unpredictable and adventurous baby pollywog Polly; and overprotective and traditional grandfather Hop Pop who live on a farm in the town of Wartwood. As she bonds with her newfound family, Anne gradually learns what it means to be a hero and develop a true friendship, all the while trying to find her friends and return home. The matter is complicated when Sasha allies with Captain Grime, leader of the warfaring toads of Toad Tower, who seek to control their home of Frog Valley.
Season 2.
Anne and the Plantars go on a road trip to the Amphibian capital, Newtopia, to learn the secrets of the Calamity Box and find a way to get Anne home. There, Anne reunites with Marcy, who offers to help restore the box's power through a series of ancient trials, unaware that Amphibia's ruler, King Andrias secretly has his own plans for them. Meanwhile, Sasha and Grime plot to invade Newtopia and overthrow the monarch, allowing the toads to rule ovAnd now it is fianlly TIME for the Big Reveal that thte is IS the Marcy who is the evil and the evilest oNE TO GET er all of Amphibia.
Season 3.
Anne and the Plantars are transported to Anne's home in the suburbs of East Los Angeles. Anne must now help the frog family adjust to the human world and keep their identities a secret, while searching for a way to return to Amphibia and stop Andrias's invasion on the Multiverse. In Amphibia, Sasha and Grime lead the people of Wartwood in a rebellion against Andrias. However, Andrias begins sending forces to Earth to eliminate Anne, while keeping Marcy in suspended animation inside of a stasis capsule for future plans. 
During "Olivia and Yunnan however, Marcy is freed by Lady Olivia and Yunnan but they get caught by Andrias and she is used to contain a hive mind known as the Core and will be referred to as, Darcy.