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.

继《驯龙记第一季》和《驯龙记第二季》的三年之后，一次偶然的机会，小嗝嗝和没牙仔发现了神秘的龙之眼，故事由此展开。他们将会经历更多的冒险，面临重重挑战，发现全新的龙族，揭示更多龙族的秘密。从中会深化嗝牙的友谊，并充分展现龙骑士的成长历程、博克岛的愈加兴盛，交代博克岛与维京人的变化。