This is a possible concise summary:
The video tells the story of a group of experienced climbers who died on Elbrus in 1990 under mysterious circumstances. The group, led by Sergei Levin, got stuck in a snow cave at 4500 meters due to bad weather and could not descend for three days. They also sheltered two Japanese climbers who were in trouble. Only two people survived: one of the Japanese and one of the Russians, Odintsov. The video discusses some of the strange details of the tragedy, such as a broken walkie-talkie, missing equipment, hair in the stomach of one of the dead, and paradoxical undressing. The video also analyzes some of the possible factors that contributed to the death of the climbers, such as hypothermia, hypoxia, altitude sickness, wet clothes, poisonous gases, and psychological stress. The video ends by inviting the viewers to share their own versions of what happened and to support the channel financially.
Here are the key facts extracted from the text:
1. In 1990, a group of six experienced climbers led by Sergei Levin went to Mount Elbrus.
2. The group included Sergei Levin, Sergei Forbstein, Oleg Buldakov, Odintsov, Voronin, and Lazarev.
3. They were participating in a tour and also preparing for a more difficult route in the Pamir mountains.
4. On May 2, the group was at an altitude of 4,500 meters and decided to make an acclimatization trip.
5. The weather suddenly deteriorated, and the group decided to dig a snow cave to wait out the bad weather.
6. The group did not have tents with them and usually did not take them on such short acclimatization trips.
7. The snow cave had two chambers, but one of them collapsed, and the group had to gather in one cramped chamber.
8. The group was unable to descend due to poor visibility and high winds.
9. Sergei Forbstein fell twice on the descent, and the group decided to return to the cave.
10. The group made a second attempt to descend but was forced to return to the cave again.
11. Odintsov discovered the corpses of three of his comrades outside the cave, and two others were lying in an unconscious state inside the cave.
12. One of the Japanese climbers was missing, but was later found frozen nearby.
13. Sergei Forbstein was lowered to shelter 11, where he died of hypothermia without regaining consciousness.
14. Oleg Buldakov was found dead without a pulse or breathing.
15. Odintsov and the remaining Japanese climber survived.
16. The forensic examination ruled that the climbers died due to hypothermia.
17. The group had 52 ice drilling hooks with them, which is a lot for the route they took.
18. Some of the group members' equipment was missing, including expensive and rare items.
19. A pool of blood was discovered in the cave, and one of the dead climbers had hair in their stomach.
20. The group members were found without boots, down jackets, or pants, and had ice growths on their faces.
21. The weather conditions were extremely harsh, with strong winds, low temperatures, and high humidity.
22. The group's insufficient acclimatization and wet clothes contributed to their deaths.
23. The cave was poorly ventilated, and the group was exposed to poisonous gases from the Primus stove.
24. The group's imprisonment in the cave and their poor physical and mental state due to altitude sickness and hypoxia contributed to their deaths.
These facts provide a basic understanding of the events that occurred during the ill-fated expedition.