Mysterious Doctor Satan: The Flaming Coffin 1940

CRAZED WITH THE LUST TO KILL! A power-mad maniac unleashes a lightning attack on an unsuspecting nation...And finds the Copperhead thirsting for revenge!

Copperhead hides in a box about to be delivered to Doctor Satan's new hideout. Doctor Satan suspects a poison gas booby-trap and has the still sealed box incinerated.