When a nasty thunderstorm rolls through the region and threatens to postpone Lucy and Kevin's wedding, everyone scrambles to make it to the church in time. Mary barely catches the last flight in and brings Matt with her. Chandler and Roxanne rush to pick up Ben and his mother who are stranded at the airport in Las Vegas, but tensions run high and a fist fight breaks out; and Matt gives Lucy some very special brotherly advice when she confesses to pre-wedding jitters.

Chandler et Roxanne se battent avec Ben et sa mère en se rendant au mariage de Lucy. Matt aide Lucy à se rendre compte qu'elle fait le bon choix. Kevin et Lucy se marient entourés de leur famille. Mary arrive à temps, accompagnée de Ben.