Charles and David Koch inherited an oil company from their father and built it into a conglomerate with holdings running from petroleum to paper products, becoming two of the wealthiest men in America along the way. This Al Jazeera English film traces how that fortune gets converted into political power, following the money from Koch Industries into conservative think tanks, advocacy groups, and campaign coffers reaching from state legislatures to Congress. It lays out specific fights the brothers have funded, including efforts to cast doubt on climate science and to shape policy on healthcare, environmental regulation, and taxation, and asks why two private businessmen have chosen to spend so heavily shaping public debate on issues tied to their own industries. The brothers get some space to explain themselves, framing their spending as a defense of individual liberty and free markets against government overreach, but the film's own tally of think tanks funded and campaigns bankrolled makes the scale of their reach the harder fact to argue with.