The story revolves around Dong Nam, a passionate mountain climber, who throws a birthday party for his love interest at a hotel. However, their celebration is disrupted when a toxic gas tanker crashes in the city center, releasing a deadly gas that spreads quickly.
Dong Nam and the people in the hotel are trapped, and they must find a way to escape the toxic gas. Dong Nam uses his mountain climbing skills to try and reach the rooftop, where he hopes to find a way to open the door from the outside and let the others escape.
After several failed attempts, Dong Nam finally succeeds in breaking the glass door and opening it from the outside. He then helps the others to safety, but his love interest, Un Cho, is poisoned by the gas.
Dong Nam and Un Cho must navigate through the toxic gas-filled streets, using their mountain climbing skills to find higher ground and escape the danger. Along the way, they encounter numerous obstacles, including a helicopter that is unable to rescue them due to the gas.
Just when all hope seems lost, a group of drones, flown by young people from the city, arrive and help the couple to safety. The drones create a makeshift rope bridge, allowing Dong Nam and Un Cho to cross over to a nearby building.
In a heart-pumping finale, the couple is rescued by a helicopter, and they are reunited with their loved ones. The story ends on a hopeful note, with the couple's love and determination ultimately prevailing over the dangers they faced.
Here are the key facts from the text:
1. The story begins with the male lead, Dong Nam, celebrating his girlfriend's birthday at a hotel.
2. A container truck carrying extremely toxic gas crashes into the city center.
3. The driver of the truck gets out and intentionally releases the toxic gas.
4. The gas spreads quickly, causing widespread panic and death.
5. Two security guards try to stop the driver, but he escapes.
6. Dong Nam and his family try to find a way to escape the hotel, but the doors are locked.
7. They try to find a key to unlock the door, but it's nowhere to be found.
8. Dong Nam decides to climb up to the rooftop and open the door from the outside.
9. He uses his mountain climbing skills to climb up the building and open the door.
10. His family is able to escape, but they soon realize that the helicopter has arrived to rescue them.
11. However, the helicopter is overloaded, and Dong Nam and his girlfriend, Un Cho, are left behind.
12. They decide to try and find another way to escape, using their mountain climbing skills to climb to a higher building.
13. They use a rope to cross over to another building, but the toxic gas is getting closer.
14. They use a drone to try and signal for help, but it runs out of battery.
15. Just when they think all hope is lost, a group of young people fly in with drones to help them.
16. The drones are used to carry a rope to the other side of the building, allowing Dong Nam and Un Cho to cross over.
17. They use the rope to climb to safety, but not before the camera on the drone slips and records their apparent fall to the ground.
18. The whole country is shocked and saddened by the apparent death of the two lovers.
19. However, it's revealed that they actually survived and were rescued by a helicopter.
20. The story ends with Dong Nam and Un Cho being reunited with their families and reflecting on the difficulties they faced.