Watch The First 48 Season 18 Episode 1 Online. Best and Free Online streaming for The First 48 TV Show. We picked the best sites to stream s18e01. Simply pick a site below and click "Watch Now!" button next to it. Some of the links may be broken, please upvote the working and good links so other users see those links for The First 48 Season 18 Episode 1 s18e01 at the top of the list.