Ordinary Anne Boonchuy, 13, finds a music box that sends her to Amphibia, a world full of frogs, toads, and giant insects. With help from Sprig, she must adjust to life in Amphibia and discover the first true friendship in her life.

Steven acha que seu tempo de defesa da Terra acabou, mas quando uma nova ameaça chega a Beach City, Steven enfrenta seu maior desafio.