The girls get into a fashion war.; The gang doesn't want Archie to tell Betty about the surprise birthday party they are planning for her.; Betty is surprised to learn from Veronica that rich people don't wear their expensive jewelry in public but have copies made. So, Betty gives Veronica a plastic copy of her most valuable possession, Archie, and puts the real one under lock and key.; Betty is successful at hypnotizing people, but none of her hypnotic suggestions work in her favor.; Doris realizes that in order to attract boys she needs to wear medieval fashion. So, she paints her phone number on a shield.; Li'l Jinx can't afford the price of a movie ticket because she spent all her money on candy and snacks while waiting in line.