Amphibia is in a state of war and chaos, Anne and Sasha lead The People of Amphibia to stop King Andrias from launching The Invasion of Earth. Anne and Sasha managed to gather The Frogs, Newts, and Toads to work together to take their world back, Anne and Sasha were confident, until they hear news about their dear friend, Marcy... And they weren't good... Anne and Sasha were shocked to hear that Andrias had used Marcy as a host for The Core, A Collection of Amphibia's Greatest Minds and Monarchs Uploaded into a unified consciousness preserved for all eternity. Anne and Sasha became determined to save their friend from this evil entity and finally make things right... But what happens when something happens between Anne and Marcy... It will be something shocking... But also very good at the same time...