When Plainview gets a mysterious tip-off that there's a little town out West where an ocean of oil is oozing out of the ground, he heads with his son, H.W. (Dillon Freasier), to take their chances in dust-worn Little Boston. In this hardscrabble town, where the main excitement centers around the holy roller church of charismatic preacher Eli Sunday (Paul Dano), Plainview and H.W. make their lucky strike. But even as the well raises all of their fortunes, nothing will remain the same as conflicts escalate and every human value - love, hope, community, belief, ambition and even the bond between father and son - is imperiled by corruption, deception and the flow of oil.