Frank Richards, 'the man with cast-iron tummy' is put to the test by boxers.
Full titles read: "The human punching bag". (new title) "Meet Frank Richards, the man with the cast-iron tummy."
United States of America.
On the roof of a city building we see Frank Richards standing in trousers but no shirt. A man next to him in a suit tells a line of men in shorts "All right now boys, take a wallop at Frank and put some punch in it this time, will you?" The men all take a turn at punching Frank in the stomach - he barely flinches! Then Frank lies his back on the ground and the men take turns to jump down hard onto his tummy! Youch! He is then hit in the stomach with a hammer and has a chair broken over his belly (this last one looks a little suspicious to me!).
Intertitle reads: "Even Jess Willard couldn't stop Frank -!"
M/S of boxer Jess Willard punching Frank three times in the stomach - he says "You win!" and shakes hands with Frank.