Light Penetrating Fog

Okay, so, I want to make it to where a room is EXTREMELY dark, and you have a flashlight. Now, I want it to where when you turn on the flashlight, this flashlight using a spotlight, I want the spotlight to go through the fog. It would make an extremely interesting effect for my game, and I am a horrible coder, so could someone help me make this work? Thank you!

I also have this problem :frowning: