A possible concise summary is:
The speaker is a man who is desperate to rescue his girlfriend Carol, who was kidnapped by a mysterious person who demands 20 liters of gasoline as ransom. The speaker narrates his frantic search for gasoline in a city where there is none, and how he has to trade his clothes, his bike, and his car to get enough fuel. He finally reaches the kidnapper's location and delivers the gasoline, hoping to get Carol back. He then ends the video by asking the viewers to watch his other videos and follow him on Instagram.
Here are the key facts extracted from the text:
1. The speaker's girlfriend was kidnapped and he needs to get 20 liters of gasoline to get her back.
2. The speaker had to sell his cars, give away his clothes and attack another car to get the gasoline.
3. The speaker was very tired, hungry and ashamed after walking a long distance with the gasoline.
4. The speaker managed to call the kidnapper and deliver the gasoline to a car near a car dealership.
5. The speaker asked the viewers to watch his other videos and follow him on Instagram.