The video appears to be part of a series documenting the construction of a secret underground tunnel by a person named Colin. In this episode, Colin is continuing to dig the tunnel, which is approximately 3.5 meters deep and 22 feet long. He has developed a system for digging and supporting the tunnel, using a hydraulic ram and a steel liner to prevent collapse. Colin is working in stealth mode, trying to avoid making noise that might alert his neighbors. He has also developed a method for excavating the tunnel without causing it to collapse, using a combination of mesh and concrete to seal the edges. The video shows Colin's progress, including the challenges he faces and the solutions he finds. He is getting closer to completing the tunnel, which will eventually connect his workshop to a bunker and possibly his house.
Here are the key facts from the text:
1. The narrator is digging a secret underground tunnel below their workshop.
2. They are currently 3.5 meters down and plan to dig sideways towards their underground bunker and house.
3. The tunnel is being dug in stealth, requiring complete silence.
4. The narrator has created a hydraulic system to help with the digging.
5. They have encountered different types of rock and soil, including clay, limestone, and compressed clay.
6. The narrator has developed a system to remove the rock and soil without making too much noise.
7. They have installed festoon lights to illuminate the tunnel.
8. The tunnel is approximately 6.5 meters (22 feet) long.
9. The narrator has been working on the tunnel for about a month and a half to two months.
10. The last part of the tunnel, which is about 1.5 to 2 meters long, took only a week to a week and a half to complete.
11. The narrator plans to build a tunnel within the tunnel, surrounded by concrete, and install proper lights and power.
12. The next step is to shore up the tunnel and make it safe before proceeding with the next phase of the project.
13. The narrator plans to connect the tunnel to the house and make it fully functional.