A24 has released the second official trailer for "Onslaught," an upcoming action-science-fiction film directed by Adam Wingard [1, 2].

The release generates anticipation for the studio's venture into high-concept action cinema. By showcasing the film's scale and intensity, A24 aims to attract a broad audience for its theatrical debut [2, 4].

Scheduled to open in theaters on Sept. 4, 2026 [1, 3], the movie will be available in standard and IMAX formats across the U.S. and internationally [1, 2]. The plot centers on a conflict involving genetically engineered super-soldiers [3].

According to a description from FirstShowing.net, these antagonists are described as the human equivalent of a heat-seeking missile and will not stop once they begin killing [2].

The film features an ensemble cast led by Adria Arjona [1, 2]. Other starring roles include Alex Pereira, Drew Starkey, Rebecca Hall, Reginald VelJohnson, Michael Biehn, Eric Wareheim, and Dan Stevens [1].

Wingard, known for directing "The Guest," returns to the action genre with this production [3]. The new footage highlights Arjona's role as a protagonist facing off against the engineered threats in a chaotic environment [4].

This trailer marks the second major promotional push for the film via YouTube and IGN [1, 2].

“"Once they begin killing, they will not stop."”

The partnership between A24 and Adam Wingard suggests a pivot toward larger-budget, genre-driven spectacles. By utilizing IMAX and an ensemble cast, the studio is attempting to bridge the gap between its reputation for indie prestige and the commercial requirements of a global action blockbuster.