After his grandpa's passing, Mexican-American Will decides to go ahead with the plans he'd made to help him discover his roots in Mexico....

小女孩安娜随妈妈住在精神病院里，某天院里遭遇可怕的恶火龙袭击，妈妈却无端被囚禁，而爸爸又远在他方。她决定冒险潜逃出去，踏上万里寻父的旅程，回来拯救亲爱的妈妈。病院里的好朋友布鲁诺自告奋勇同行，还带上一群奇怪又滑稽的生物，展开这趟笑声与泪声交织的救援大冒险。...