The Flaming Hour (1922)

Lucille Danby marries Bruce Henderson after her father, John Danby, fires him, but she leaves him when Bruce's quick temper flares at seeing her with his old rival, Richard Mower. Disconsolate yet determined to alert Danby to Mower's thievery, Bruce collects evidence while disguised as a bum. Mower discovers Bruce and shoots at him, thus causing a chain of explosions in the fireworks factory. Danby and his daughter are trapped until they are rescued by Bruce.