What have Archie and Katie been up to on Cow Hill since their last adventure? Well, they have been living a quiet, calm, happy life but are a bit bored with no excitement until... Hector appears out of the blue with a couple of new friends, all seeking adventure, so off they all go once again, finding a hidden world right on their doorstep. The Cow Hill is hiding a secret, where new people welcome them in, ask them to join their world for a little while, have an adventure, play together and all become great friends forever! Great friends don't have to look the same as you; being different is more interesting and exciting!