An accident in the main engine of the Soyuz-33 spacecraft is about to turn the flight of the first Bulgarian astronaut from a triumph into a tragedy. 40 years later, the return from that flight on the edge of infinity as told by Georgy Ivanov with rare footage of S.P. Korolev Rocket and Space Corporation Energia and a hitherto unknown conversation with the flight commander Nikolai Rukavishnikov. DAMYAN SERKEDZHIEV has been working for 40 years as a director at BNT, Nova TV and TV Europe. He has made over 20 documentaries, including From Rambouillet to Vidovden (1999, Golden Rhyton); over 200 live concerts, including Chuck Correa, Blues Brothers, Gypsy Kings, Accept, Deep Purple, Uriah Heep, Nazareth, Steve Vai, Toto, Metallica, Suicidal Tendencies, etc.