Sketches in this episode include the busy CEO learning from his assistants that lions can't swim and there's actually no pepper in Dr Pepper; the origins of the dinner party are revealed as Neanderthals sit down to a spot of mammoth and mugs of blood; the Second World War pilots aren't pleased to be roped into digging the escape tunnel - the dirt is bad for their asthma and definitely against health and safety; Jilted Jim continues to cause havoc in Hawaii by letting slip that Phil said men cheating was inevitable; and an undercover operation is ruined when a reasonable boss turns up to tell his employees that working past 5pm isn't acceptable and to get themselves home. (thetvdb.com)