Emma loves horses - so she is quite astonished when one day a talking pony appears at her doorstep. But that's not all: the four-legged Klara is very upset because the farmer she lives with wants to send her to a retirement home. Together with her four friends, the hoarse dog Frieder, the toothless cat Susi, the smelly billy goat Waldemar, and Hildegard, the black-and-white sheep, Emma is horrified. Together with her brother Hugo, she devises a plan because: The Terrible Five need help!.