Doc McStuffins Season 3 Episode 19 Kirby's Derby / Ticklish Truck Episode Title:Kirby's Derby / Ticklish TruckEpisode Description:Sir Kirby dreams of winning the McStuffins Derby cup and Rose Crown against the Wicked King, Queen Amina and Dress-Up Daisy, but a mishap on Sir Kirby's steed Bonnie Blue (who cracked and lost a wheel on the process) nearly injures Bonnie Blue and caused Sir Kirby to feel guilty about her injury. While playing "Defend the Pillow Fort from the Dragons," a pillow rips, spewing feathers all over the room, but one of the feathers gets imbedded inside Lenny causing him to laugh and squirt water uncontrollably.