Due to global warming, the Human Survival Project was launched in 2063. A group of children was grown in test tubes from biomaterial from specially selected donors. They did not leave the walls of the laboratory - they lived there and studied under tireless supervision, so as not to get used to sunlight and open spaces.
While still young people, they set off on a journey to a distant planet suitable for life, but their grandchildren will reach there at best. Soon, friends Zach and Christopher find out that the vitamin drink, which the entire team, with the exception of the accompanying adult, takes every day, contains a substance that makes them calm and obedient.