The Boys Season 4 Episode 6: Dirty Business

In "Dirty Business," Butcher interrogates the captive Sameer and gives him weeks to develop more of the anti-supe virus. MM sends Hughie undercover as Webweaver at Tek Knight's gala to investigate Sage's meeting with Tek Knight and the suspected rebellion plan. At the gala, Homelander urges wealthy political donors to invoke the Twenty-Fifth Amendment so Neuman can become president; Neuman declares herself the plan's mastermind and promises the donors freedom from government interference.

Tek Knight discovers Hughie's identity and prepares to torture him, but Annie and Kimiko enter the Tek Cave and rescue Hughie. MM shoots Sage in the head after she taunts him; Sage survives and later behaves with reduced cognitive capacity, consistent with her healing after the injury. Tek Knight reveals that Sage and Homelander intend to use his private prisons as internment camps for dissenters. Elijah then strangles Tek Knight to death, enabling the others to escape.

Sameer says a virus powerful enough to kill Homelander would become airborne and kill every supe, and Kessler then reveals he is another figment of Butcher's imagination.

The episode closes on two beats. First, Sameer tells Butcher that a virus powerful enough to kill Homelander would become airborne and kill every supe. Second, Kessler reveals he is another figment of Butcher's imagination. This leaves open whether Butcher will pursue a virus that could kill all supes, how Hughie will process the Tek Cave ordeal, and what comes next for Sage and Homelander's political and prison plan.