Despite Emily's (Helen Baxendale) trepidations, Ross (David Schwimmer) sends a wedding invitation to Rachel (Jennifer Aniston). Pretty soon, everyone has their invitations -- except, curiously, Chandler (Matthew Perry). This intrigue is used as a framework for a series of clips from earlier episodes of Friends, with a few surprising moments for viewers familiar with those episodes. ~ Hal Erickson, Rovi