Fraggle Rock: Back to the Rock Episode 5 - Four Wembleys and a Birthday Episode Title: Four Wembleys and a Birthday Episode Description: Wembley's friends want to celebrate his birthday with different activities. His attempts to participate in all of them end up splitting him into four, individual versions of himself. Meanwhile, Cotterpin makes a gooey discovery in a strange vine. In Outer Space, Doc takes to the internet to bring attention to the ocean's plastic problem. Note: The episode's title is a reference to Four Weddings and a Funeral.