To help Archie win a dance contest Jughead paints dance steps on the floor that can only be seen with special glasses, however Reggie sabotages the dance steps.
An accident involving a nuclear testing lab leaves Archie with a radioactive charge that causes a basketball to be magnetically attracted to his hands. This serves him well in the big game that night.
A combination of a strange chemical solution and radiation from a machine causes Archie's hand to become invisible. Then the same thing happens to Mr. Weatherbee's head.
When Archie sees Veronica with a date, he casually swears off girls forever. He shares his new-found joy with Jughead and Reggie, much to their dismay.