Oh no! Nick has torn his favourite shirt! He needs a perfect patch of cotton to fix it. Good thing Cat's friend Dr. Twiggles knows all about cotton! Off to Fluff'n Stuff Fields to see him! Once there, the kids are astonished to learn that you can make clothes from plants! Dr. Twiggles shows them how to pick the cotton, clean and dry it, comb it and spin it into thread. Finally, he demonstrates how the thread comes together to make a patch by using his loom. They even learn how to dye the cotton by using berry juice. Nick's favourite shirt is as good as new!