On June 6, 2012, the apnea diver Herbert Nitsch sought to improve his own world record in freediving by another 100 feet - to 800 feet (244 meters). The record attempt off the Greek island of Santorini was to only be the beginning of his "1,000 feet" project. Despite painstaking preparation, on this early summer afternoon Nitsch experienced the worst-case scenario. Unconscious, he had to be brought to the surface by rescue divers - after reaching a depth of more than 818 feet (249.5 meters). For almost a year afterwards, there was no information whatsoever either about the accident or about Herbert Nitsch’s condition. However, this documentary accompanied him during his incredible recovery, removed from the public eye, and offers world exclusive documentary material on the months of preparation leading up to and including the life-threatening accident in Santorini, the difficult rehabilitation in specialized clinics and finally, Nitsch's way back into the stillness of the underwater world of the sea.