"Biology 101": Shirley and the rest of the study group return for their third year at Greendale.
“Geography of Global Conflict”: Shirley is a member of Annie’s Model UN team representing China.
“Remedial Chaos Theory”: When Jeff rolls a “4” on the die, Shirley goes to get the pizzas. He tells the others not to eat the pies as baking shouldn’t be her identity in the group. This results in her pies burning and Jeff telling her they weren’t going to eat them. Shirley ends up crying and storming out of Troy and Abed’s apartment.
"Competitive Ecology": When the study group tries to pair off for Biology lab partners, Shirley discovers she's the member of the study group that no one one to be partners with when Abed uses it popularity to determine who should be paired off together.
"Horror Fiction in Seven Spooky Steps": Shirley relates a horror story which is just her moralizing to the study group.
"Studies in Modern Movement": While driving over to Troy and Abed's apartment, Britta picks up a hitchhiker to prove a point to Shirley.
"Foosball and Nocturnal Vigilantism": Shirley and Jeff discover a mutual love of Foosball as well as a shared past history they have together.
"Regional Holiday Music": Shirley and the study group are eventually convinced to help out Cory Radison, the conductor of Glee Club, and participate in the Christmas Pageant.
"Urban Matrimony and the Sandwich Arts": Andre proposes to Shirley but she gets distracted from her wedding plans by a possible business deal with Pierce.
"Digital Exploration of Interior Design": Shirley and Pierce enlist Britta's help to sabotage the new Subway franchise.
"Pillows and Blankets": Shirley becomes Troy's second-in-command in his Blanket fort army who is waging war against Abed's Pillow fort army.
"Origins of Vampire Mythology": Shirley accompanies Jeff to the carnival so he can check out one of Britta's ex-boyfriends.
"Basic Lupine Urology": Shirley takes part in the probe of the study group's yam which was murdered directing Troy and Abed on their investigation of the case.
"Course Listing Unavailable': Shirley and the study group get expelled from Greendale.
"First Chang Dynasty": As part of the plan to rescue Dean Pelton and take down Chang's regime at school, Shirley infiltrates Chang's birthday party dressed as a male baker who delivers his birthday cake.
"Introduction to Finality": Shirley and Pierce have a dispute over their new sandwich shop and Jeff ends up having to represent her in "Greendale Summer Court" when Pierce decides to sue her for sole ownership.