Overview
- A24 released the full Onslaught trailer on Monday, July 27, 2026, giving the first wide look at Adria Arjona as a former Army sniper who must protect her young daughter from escaped genetically engineered super soldiers.
- Director Adam Wingard confirmed at San Diego Comic‑Con that the film shares the same town and programmatic universe as his 2014 film The Guest, which the coverage describes as a spiritual or technical sequel rather than a direct character follow‑up.
- The trailer names three antagonist figures — Crybaby, Cockroach, and The Butcher — and frames the attackers as relentless, "the human equivalent of a heat‑seeking missile," while showing UFC champion Alex Pereira physicalizing one of the killers.
- Dan Stevens appears in heavy prosthetics as a mad German scientist and is not reprising his The Guest character, and the film has been rated R for strong bloody violence, some gore, sexual material, nudity, and language.
- Onslaught reunites Wingard with writer Simon Barrett and is co‑financed by A24 and Lyrical Media; it opens in theaters and IMAX on September 4, 2026, marking Wingard’s return to the gritty, R‑rated indie‑horror style that built his early following.