Set in 1950s New York City, the film revolves around a mysterious and dark murder case, exposing the early V1 serum experiments and the rise of the ruthless Vought corporation.

Producer Eric Kripke describes the film as a classic, dark, and satirical detective noir, much like a superhero version of the popular film L.A. Confidential.

The trailer reveals a scene where Soldier Boy almost dons his classic costume, along with gruesome scenes at the early Sage Grove Center psychiatric hospital – a place where cruel human experiments were conducted.