when i realized i think i was filming all this. >> the first time i watched it, it was scary, you know, because you see yourself going through this. this is not a good experience. >> both firefighters hope others can learn from the video captured by alan bell's helmet camera. >> my primary goal of the video was to use for training. and that we all should train for the highest level possible. you can see what happens. it's all on camera. >> mayday. firefighter down. >> coming up, h2 -- whoa! >> all of a sudden i feel the blast of water hit me and that was it. >> i think the sprinklers came on. when ought on camera continues. .