剧集 · 1999 · 美国 · 欧美剧 

Bonnie Turner / Terry Turner / 约翰·利思戈 / 克莉丝汀·约翰斯顿 / French Stewart / 约瑟夫·高登-莱维特 / 

　　A group of aliens has come to Earth to learn about its population, customs, etc. To avoid detectio