When Archie needs money for a dance but is too proud to borrow it, Pop gives him the money in exchange for doing some work later, when needed. Unfortunately he's needed on the night of the dance.; The prehistoric Archie gang invents the concept of peace, holds the world's first love-in, and convinces everyone in prehistoric Riverdale to burn their weapons.; Archie accuses his friends of putting a "whammy" on him.; The teachers see Archie and Jughead leave the lab with a chemical solution and apply it to the school walls.