Matt Lucas and David Walliams take their comic creations to the US. Familiar faces making an appearance include Lou and Andy, Carol Beer and Marjorie Dawes, whose Fatfighters group gets a visit from Rosie O'Donnell. New characters include Mildred, who shares inappropriate secrets from her past with grandson Connor, Bing Gordyn - the eighth astronaut to fly to the moon, muscle-bound gym buddies Mark and Tom, and potty-mouthed child Ellie-Grace.