Billy Butcher killed Homelander during the series finale of The Boys, ending the conflict between the two rivals.

The conclusion of the series marks the resolution of a multi-season arc centered on the destruction of Vought International and its most powerful asset. The finale provides a definitive end to Homelander's reign of terror and his attempts to dominate the U.S. government.

The climax occurred in Season [1] five, Episode [2] eight, during a battle inside the White House. Butcher intervened to stop Homelander from releasing the Godolkin Virus, a biological threat intended to consolidate power over the U.S. population [3]. While some reports focused on Homelander losing his powers during the encounter [4], other accounts confirmed that Butcher ultimately killed the antagonist [5].

The confrontation served as the final resolution for Butcher, whose primary motivation throughout the series remained the elimination of the superpowered individual. By neutralizing the threat within the halls of the White House, the characters prevented the widespread deployment of the virus, and the subsequent collapse of national stability.

This finale brings the narrative full circle by pitting the show's primary protagonist and antagonist in a final physical and ideological struggle. The death of Homelander removes the central pillar of Vought's influence and the primary source of instability within the show's version of the U.S. political landscape.

Billy Butcher killed Homelander during the series finale of The Boys

The death of Homelander signifies the total collapse of the 'superhero' corporate hegemony established by Vought. By tying the finale to the prevention of a biological attack, the series shifts from a personal vendetta between Butcher and Homelander to a broader commentary on the dangers of unchecked power and the fragility of national security.