Ammonites Rule!
S2:E4
2007
IMDb
It's time to pay the rent for the earth to the Ammonites - one slipper orchid from the top of Mount Kippabaru, once every thousand years. If The Imposters get to Ammonia first, they will control the Earth - to say nothing of what will happen if the Ammonites find out that the orchid is a plastic one...