خلاصه داستان : نگاهی به گروهی که در سال 1991 موفق به ساخت بایوسفیر دو شدند؛ مدلسازی عظیمی از اکوسیستم کره ی زمین.

In 1991 a group of countercultural visionaries built an enormous replica of earth’s ecosystem called Biosphere 2. When eight “biospherians” lived sealed inside, they faced ecological calamities and cult accusations. Their epic adventure is a cautionary tale but also a testament to the power of small groups reimagining the world.