Science is the driving force that’s changed society the most in the last few centuries. Many of these advances have come from pure science research, done simply in the pursuit of knowledge, without applications in mind. This is the story of three Chinese scientists who’ve devoted their lives to pure scientific research; looking deeper into the Cosmos, the ocean, and the atom. We reveal just what it took to build the world’s largest radio telescope; set to double the number of pulsars discovered in our galaxy. We follow the challenges of constructing the world’s most sensitive neutrino detector, deep underground in Southern China, that’s designed to measure the mass of these elusive subatomic particles. And we dive to the deep ocean with an aquanaut and marine engineer, who’s creating a new type of submarine for regular trips to the largely unexplored deep sea floor.