Bryan Johnson opens his Los Angeles home to show the daily regimen behind his 'Don't Die' program: identical meals, strict sleep schedules, blood transfusions from his own son, and a calendar built entirely around avoiding risk. He is the movement's most visible face, but the film also follows a YouTuber named Anastasia chasing eternal youth online and talks to a US researcher who claims humans could eventually live to 500. Interviews with scientists and longevity entrepreneurs lay out the actual biology behind biohacking, from supplements and cold exposure to gene therapies still far from proven, and weigh it against the price tag most of these regimens carry. The film keeps returning to two questions: how much of this is real medicine and how much is expensive theater, and who besides the already wealthy could ever access it if it worked. Interviews with skeptical researchers puncture some of the more grandiose claims, leaving the movement looking less like a cure for death and more like a lifestyle only the rich can afford to test.