While Archie complains about pollution, we see how his one thoughtless act of littering sets off a chain reaction that leads to massive environmental damage.; The Riverdale High biology class tries to enter the class frog, Morty, in a jumping contest against the frog from Central High.; Prehistoric Reggie invents the bow and arrow (which he calls a "vine and stick"), but it only works when it's used backwards. Reggie stubbornly insists on using it the way he invented it.; At a party, Archie demonstrates why Mr. Lodge trusts him with Veronica: when rich boys try to get Veronica to go to a wilder party, Archie steps in and prevents it.; Li'l Jinx rips the arm off her teddy bear.