The most successful unsuccessful event in the history of American astronautics took place from April 11 to 17, 1970. Then, after careful preparations, completely unnoticed by the public, who had already taken such flights for granted, a crew consisting of Jim Lovell, Fred Haise and Jack Swiger, who replaced the original crew member, Ken Mattingly, at the last minute due to health problems, launched to the moon. The first days of the flight went smoothly, but then, on April 13, the legendary "Houston, we have a problem" came over the control center speakers.
One of the oxygen tanks ruptured, damaging the other. Pressure began to drop, there were problems with the connection. The crew realised their dream of standing on the surface of the moon was lost, and it became a desperate battle for their lives. To save air, the astronauts move to the lander and try to keep the ship on course. In Houston, it is decided to use the moon's gravitational pull to return, and so the astronauts face an extremely difficult, if not impossible, task. To orbit the moon with the badly damaged ship, return to Earth and land safely. The whole world watches with bated breath as the drama unfolds far beyond Earth's atmosphere.