Follow Dr. Evgenia Belyaeva, a stellar thoracic surgeon at the Russian Academy of Sciences, as she prepares meticulously for the most challenging operation of her illustrious career. With nerves of steel and a keen intellect, she must perform a life-saving surgery on a cosmonaut at the International Space Station in zero gravity, the likes of which has never been attempted. Against the clock and with zero margin for error, the success of this operation will not only save a life but also represent a landmark victory for medicine and space exploration alike. Will she overcome her fears and insecurities to triumph in the name of science and human progress?