Overview: When going through some old magazines at a thrift sale, the gang discovers an old issue of Playpen with an article entitled ""The Girls of Pan Am: Around the World in 80 Ways,"" which features model Linda Zernick. . .who bears an uncanny resemblance to Lenora Zwick. Meanwhile, Jess keeps having chance encounters with all of Mac's ex-girlfriends, so she invites them all over to dish.