Curious Sunny Bunnies are at the Natural History Museum. It's full of interesting things: a mammoth, prehistoric hunters and even a huge dinosaur! The museum's caretaker - robot S-Marty - asks little visitors to behave nicely but frivolous bunnies find it difficult to stop playing. And of course end up in a sticky situation!

Everyone knows Bunnies' bright colours: orange, green, blue, pink and purple. One day, because of the Bunnies' silly pranks, they have lost their colors. What will Sunny Bunnies do to get their colors back?