Walter Mitty is the bravest man alive! One minute he's an ace pilot gunning down the enemy, next he's a courageous captain sailing the stormy seas. A hero among men, a heartthrob among women, he's the stuff that dreams are made of...until he wakes up to his humdrum reality. But when a mysterious blonde entangles him in a dangerous web of murder and conspiracy, Mitty's multiple worlds begin to hilariously collide. Now the hopeless daydreamer must pull his head out of the clouds and find the courage to catch the killers...or become a victim of his own fantasy explosion.