Ross (David Schwimmer) feels left out of his ex-wife Carol's baby-making process in more ways than one. Monica (Courteney Cox) tries to impress her parents with the world's cleanest apartment. Rachel (Jennifer Aniston) learns the fate of Barry (Mitchell Whitfield), whom she left in the lurch at the altar (and who doesn't seem too distressed over the humiliation). And Phoebe (Lisa Kudrow) reveals that she has a twin sister, a "high-powered, driven, career type" (thereby "explaining" Kudrow's recurring role as Ursula the waitress on Mad About You). Watch for the first appearance of Gunther (James Michael Tyler) at the Central Perk. ~ Hal Erickson, Rovi