It's time for the annual Wild Kratt Firefly picnic. Martin and Chris head off into the forest to find some fireflies to join in the fun, but fashion designer, Donita Donata, has been capturing all the fireflies to use in the making of a sparkly, one-of-a-kind dress. The Wild Kratts team has to save the firefly population!Science Concepts: Bioluminescence, Cold light.