Young Johnny Merritt is given $50,000 by his uncle and challenged by him to spend is sensibly in one day. Johnny feels it can be done, even though his uncle says it can't. The Flash steps in when certain gangsters attempt to induce Johnny to "spend" it on them.; Some very enterprising crooks discover a young man who has the unusual trait of being able to open any lock made...a trait they hope to cash in on!; Hippity discovers a piece of paper in the hanger's locker room that contains a puzzle that reveals how the latest plane, the X-37-D, is being sabotaged.; Wonder Woman investigates mysterious forest fires on land owned by Nancy Reardon, and discovers that Nancy's fiance, Sam, and a rival land owner are responsible for the blazes.