Bella has lots of questions about some very special beetles - lovely ladybirds! Ferne meets some sun beetles, horned flour beetles and purple jewel beetles at the zoo, while Rory and his son Sandy look for ladybirds in the greenhouse and build a hibernation station for the garden. Plus, we find out why ladybirds are great for the environment. They are pest controllers, who eat lots of little bugs that can destroy valuable crops.