This is really high class tv show and I really love it. Chicago Fire - Season 1 is a 10/10 tv show for me. It's probably the most known Action tv show and it's really entertaining. Remember, no matter what, you have to watch Chicago Fire - Season 1 online. What determines the phenomenon of this tv show? It's realism, taking care of psychological probability?. It's a tv show for everyone, I'm sure you'll like it after watching.