Sister vs. sister bake off at the firehouse while giving a local fireman baking lessons; a picky customer sends back cupcakes for her daughter's Sweet 16 party

Sophie and Katherine must make wedding cupcakes with two different family recipes; the new employee crosses Sophie.

The DC Roller Girl League asks sisters Sophie and Katherine to create an enormous version of their logo out of cupcakes for their opening day. Meanwhile, a trip to an exotic ingredient warehouse inspires a fun new cupcake flavor for Spring

The sisters offer to come up with a Greek inspired cupcake and a giant work of Greek art made out of cupcakes when "Mommy" invites her Greek Orthodox priest to the bakery to participate in an upcoming Greek festival.

Sophie and Katherine offer to support a DC Animal Rescue fundraiser by creating a life size dog out of cupcakes as a centerpiece for the event. In the process, they also develop their first ever "pupcakes" for the gala as well.

Sisters Sophie and Katherine own and operate one of the most successful cupcake bakeries in Washington, DC, "Georgetown Cupcake." In this episode, the sisters agree to donate a huge Mardi Gras mask made out of a thousand cupakes for a local fundraiser.