The biggest tech revolution of the 21st century isnโt digital, itโs biological. A breakthrough called CRISPR gives us unprecedented control over the basic building blocks of life. It opens the door to curing disease, reshaping the biosphere, and designing our own children. This documentary is a provocative exploration of CRISPRโs far-reaching implications, through the eyes of the scientists who discovered it, the families itโs affecting, and the genetic engineers who are testing its limits.