Trailblazing scientists are making ground-breaking discoveries in the rapidly evolving world of genetic engineering. Technologies like CRISPR are making it possible to quickly and cheaply change the DNA of all living things, including humans. Today, genes can be edited almost as easily as words on a computer screen. Science is at a tipping point, as human beings perch at the cusp of technologies and decisions that can change the world as we know it. In this course, we trace the brief but intense history of gene editing, from the discovery of the structure of DNA, sequencing the human genome, and cracking the code of life. This life-science revolution is here and holds the promise of improving the world, but at what cost? Do we want to help shape the future, or sit back and let it shape us? We explore these big questions and meet the men and women propelling the science as it progresses at a breakneck speed. No background in science required, just curiosity.