While investigating the lodge fire as well as a couple fracking site fires that might be related, Buck and his team uncover a scheme to dispose of illegal chemical waste in some of the newly drilled oil wells and uncover the murder of a rogue DEA agent who was investigating a prescription drug ring. Connected to all these crimes is a billionaire hedge fund owner who could care less about the law and whose only interest is the thrill of making more money, anyway he can.
Complicating this case even further; Buck might end up arresting his brother-in-law, who is connected to all these crimes through his business relationship with the hedge fund owner. In a dramatic conclusion, Buck must fight for his life while his team fights to defend a small town from the fast-approaching wildfire.