The Sandman, a villain capable of dissolving into a moving heap of sand, slips under the defense mechanisms at a police-guarded exhibit and robs the Goliath Diamond. When the Sandman demands a two million dollar ransom for returning the diamond and specifies a rock quarry as a money-for- diamond transfer point, Spidey arrives there with the money in a suitcase and stickily webs the bottom of the suitcase to a rock, from which the Sandman is thus unable to lift the suitcase. In the ensuing battle, Spidey's makeshift web-shield deflects the boulders falling upon him from a bulldozer controlled by the Sandman. Spidey then spins his webbing into a huge slingshot that deflects the bulldozer's wrecking ball back at the bulldozer, throwing the Sandman from the vehicle and into a vat of water, where the Sandman becomes soggy and weak and drops the diamond. Spidey gives diamond and soggy Sandman to the police.