During World War II, British Royal Air Force pilot Peter Carter miraculously survives bailing out of his damaged aircraft without a parachute. He contacts an American radio operator named June and forms a deep emotional connection in his final moments, expecting to die. Against all odds, Peter later washes ashore unharmed and meets June in person, sparking a romantic relationship. However, it is revealed that a heavenly mistake was made; Peter was supposed to have died according to celestial records. Conductor 71, an otherworldly emissary, informs him that he must rectify the error and come with him to the hereafter.

Peter refuses to go, believing his newfound love for June gives him a legitimate case to remain alive. He appeals to a celestial court, arguing that his love should grant him the right to live. Meanwhile, on Earth, Peter consults Dr. Reeves, who suspects Peter's visions might be medical in nature and attempts to treat him. This sets up a dramatic parallel between Peter's struggle for life on Earth and his trial in the afterlife. The celestial court must decide whether love can transcend predetermined fate, and Peter's earthly condition continues to deteriorate, putting additional pressure on both his legal and medical battles.