Bank clerk Stanley Ipkiss is transformed into a manic superhero when he wears a mysterious mask.

The two best special agents in the Wild West must save President Grant from the clutches of a diabolical, wheelchair-bound, steampunk-savvy, Confederate scientist bent on revenge for losing the Civil War.

When timid bank clerk Stanley Ipkiss discovers a magical mask containing the spirit of the Norse god Loki, his entire life changes. While wearing the mask, Ipkiss becomes a supernatural playboy exuding charm and confidence which allows him to catch the eye of local nightclub singer Tina Carlyle. Unfortunately, under the mask's influence, Ipkiss also robs a bank, which angers junior crime lord Dorian Tyrell, whose goons get blamed for the heist.

The two best special agents in the Wild West must save President Grant from the clutches of a diabolical, wheelchair-bound, steampunk-savvy, Confederate scientist bent on revenge for losing the Civil War.

Bank clerk Stanley Ipkiss is transformed into a manic superhero when he wears a mysterious mask.