Diana and Roma head out on an adventure to the Land of Play to save KoKo Kittycorn's toys; Boris the Bore stole all of KoKo's toys and hid them in the Crystal Caves.
Diana and Roma pretend play as scientists to fix Bubble Mountain's magical bubble solution; they have to use their powers of imagination to bring the big, beautiful bubbles back to the Land of Play.
Diana and Roma transform into scuba divers to help untangle Honey's hair from the reef; all Honey wanted was to scuba dive and make some new friends.
Diana and Roma run to help when Boris the Bore turns the Land of Play's butterflies into drab moths; they turn into scientists and vets to save the day and learn that moths can be beautiful, too.
Diana and Roma pretend play as gardeners to save the day; Boris the Bore planted weeds in the Royal Garden, but that's not the only problem: they have to use the Power of Play to cheer up the flowers.
When Bonnie eats Boris the Bore's evil ice cream, Diana and Roma pretend play as veterinarians to help her feel better; when nothing seems to help, imagination and friendship save the day.