《侏罗纪宠物历险记2：失落的秘密》讲述的是：An adventurous teenager and her grandmother are the protectors of a magical doorway to a land of dinosaurs when a baby dinosaur, Junior, decides to stay in our world and stumbles upon a group of criminals planning an evil scheme. Wendy bands together with an orphan boy, Curtis, to save the town and get Junior back home.