Emanuel Maxwell, a brilliant scientist, goes to a mountain resort for rest. He falls in love with Gretchen. Her companion, Hans, taunts Maxwell into climbing a mountain with him. They are falling into a crevasse when Maxwell wakes from a dream with a climbing rope around his waist. He plans to lead a rescue party to Hans, then propose to Gretchen.
Mad scientist Lester invents a "Gravity Suspendor". His college friend Frank rushes to stop him. A flash of lightning supposedly stops Lester from activating the device. Lester gets a mental block and forgets the whole project. In the last panel, Lester's house and Frank's car are slowly settling back to Earth.
Old John Dunn is kind to everyone, even his scarecrow. He withdraws all of his savings to give to his granddaughter for her wedding. A robber who plans to steal it fails when he is terrorized by the scarecrow's shadow -- on a moonless night!
Mad scientist Ivan Kreisler invents a beam that makes a duplicate of himself that he can telepathically direct by staying perfectly immobile. While directing the duplicate to rob a bank, he is struck by a police van driven by a technician who is tracking the telepathic waves.
An automobile makes its rendezvous with a speeding train. The driver is a crash test dummy, demonstrating to the four shadowy figures (and the reader) not to ignore the stop signs at railroad crossings.