Mr. Morris is threatened by Spy Smasher with death because he was called to Washington D.C. to organize U.S. radio for its part in the defense program. Billy decides to call on Captain Marvel to act as bodyguard but in disguise. Although Morris averts danger, Marvel learns that Spy Smasher has stolen the army's newest and most secret weapon: a gas so deadly that there is no defense against it.; Spy Smasher uses his Hypno-Ray Flashlight on a group of common laborers to put them under his spell, then uses the men to cause havoc and destruction. When the former hero begins using a cyclone machine of some kind, Captain Marvel vows to stop him.; Maxinya is kidnapped by medieval knights whose King Richard wishes Hal's help in conquering all the tribes of the jungle.