Chris and Michaela showcase the insects who live at Wild Ken Hill, with the macro studio set up to showcase bugs and creepy crawlies in incredible detail. And will the beavers make an appearance live in the show? Iolo Williams and Gillian Burke showcase the sights and sounds of Wales. Do dolphins have Welsh accents? And Autumnwatch has once again teamed up with Children in Need, meeting nature-loving siblings Sophia and Leo, who are dealing with a disease that affects so many families, cancer.