Smoke really turned up the heat in the show's finale with onscreen deaths - and a surprising last-minute reveal - ahead of a possible season 2. During the season 1 finale, which premiered on Friday, August 15, Michelle (Jurnee Smollett) accidentally killed her ex Steven (Rafe Spall), set fire to his house and framed her partner Dave (Taron Egerton) for the crimes while still trying to prove he was the arsonist they spent the whole season trying to unmask. The investigation into Dave was getting to him, and he ultimately ended up driving Michelle into a forest fire to confront her.