A mad scientist grandfather invents a genetic transformation machine and his 4 year old grandson accidentally turns his body into that of a 30 year old man. Baby Bobby escapes and runs around town as his siblings try to catch him before their parents get back from vacation AND before the bad guys get to him first. The machine is worth a lot of money and they only have a day before the machine loses its capabilities to change baby bobby back.

大宝贝是由斯蒂芬·朗福德执导，玛琳·麦考米克,安德鲁·劳伦斯,肯·戴维蒂安,基普·吉尔曼,Jackeline,吉姆·汉纳主演的剧情片，在2015年上映播出，天天影视提供了大宝贝在线观看，并且还可以支持手机看，不需要下载播放器,方便广大影迷。