Andrew Carnegie, the undisputed "man of steel," and Henry Clay Frick, the king of coke, forge one of the most powerful partnerships in our nation's history. Together they become the reigning champions of a multi-million dollar steel industry during America's Gilded Age. From their headquarters in Pittsburgh, Carnegie and Frick outwit their adversaries, steam roll the competition, and rule their enormous workforce with an iron fist. The lawless, cutthroat labor environment of the late 1800s stirs up unrest with the country's strongest industrial trade union, the Amalgamated Association of Iron and Steel Workers, culminating in a seminal showdown along the banks of the Monongahela River that causes the unwinding of Frick and Carnegie's partnership and defines America's labor movement for generations.