The twins' father makes an unexpected visit.
The twins treat Margo to a holiday weekend.
A wealthy classmate (Mindy Cohn) befriends Allison.
Allison's mysterious new beau invites her to Paris.
The twins, the boys and Margo have movie fantasies.
Allison steps in for voiceless Kate at an audition.
Allison's fashion article in the school newspaper gets rave reviews, prompting her to consider a career switch.
Kate's "perfect" man falls for Allison instead.
Kate and Allison recall their high-school days.
Billy and Allison go to an awards ceremony.
The twins try to find Mr. Right for Margo.
Kate and Allison are homesick at Christmas.
A rock singer offers Kate a job on the road.
Kate tries to help her boss, a washed-up magician.
The twins move to New York to live with their aunt.
Art plans to announce his relationship with Beth.
Allison considers having an intimate relationship.
Allison decides to live away from Kate for a week.
Allison enters a dance contest to make a point.
Kate fills in for Allison in chemistry class.
New-transfer Kate is a hit at Allison's school.
Kate pretends to be Allison to pursue a new boy.
After failing her driver's test, Kate uses her father's car and her twin sister's license to drive to a rock concert.