Angie takes the entire episode to share the history of the Berlin Wall. Whatever you thought this episode would contain, we highly doubt you have two rival zoos caught on opposing sides of the wall locked in an "animal arms race," the myriad of SNAFUs around spycraft, and David Bowie performing at the Reichstag in June 1987. 

Bowie's performance shifted public sentiment around the Soviet government's control over Eastern Berlin and is credited with bringing down the wall.