第 4 季 共 13 集
播出时间：2013年2月8日
第 1 集 History 101
播出时间：2013年2月8日
The Study Group returns from summer break ready to tackle their fourth year of Community College. Jeff is particularly focused on graduating and is just a few credits away. When there is a mix-up with a history class registration, Dean Pelton institutes an elaborate physical competition for class space. Meanwhile, Britta helps Abed deal with the anxiety he is experiencing over the thought of the study group graduating and breaking up.
第 2 集 Paranormal Parentage
播出时间：2013年2月15日
On Halloween, Pierce accidentally locks himself in his panic room, forcing the gang to search through his house to find the code that unlocks the door.
第 3 集 Conventions of Space and Time
播出时间：2013年2月22日
The study group goes to the annual Inspector Spacetime Convention; Annie enjoys the luxuries of the hotel; Jeff spends time with an Inspector Spacetime fan (Tricia Helfer) in the bar.
第 4 集 Alternative History of the German Invasion
播出时间：2013年3月1日
The study group starts its European history class with professor Noel Cornwallis (Malcolm McDowell); Dean Pelton is upset when Chang returns to campus.
第 5 集 Cooperative Escapism in Familial Relations
播出时间：2013年3月8日
The study group goes to Shirley's house for Thanksgiving dinner; Jeff reunites with his father, who he hasn't seen since he was young.
第 6 集 Advanced Documentary Filmmaking
播出时间：2013年3月15日
Abed makes a documentary about Changnesia in order to receive a grant, with Jeff attempting to prove Chang is faking his disease.
第 7 集 Economics of Marine Biology
播出时间：2013年3月22日
Dean Pelton enlists the help of the study group in order to enrol a wealthy new student whose laziness is expected to bring much needed funds to Greendale.
第 8 集 Herstory of Dance
播出时间：2013年4月5日
When Dean Pelton plans a Sadie Hawkins dance, Britta throws a Sophie B. Hawkins dance in protest. At the dance Abed goes on two dates, each set up by Annie and Shirley.
第 9 集 Intro to Felt Surrogacy
播出时间：2013年4月12日
When the study group's balloon ride crashes in the wilderness, the friends encounter a mountain man.
第 10 集 Intro to Knots
播出时间：2013年4月19日
The study group gathers at Jeff's apartment for Christmas as they try to convince their history professor to change their grade.
第 11 集 Basic Human Anatomy
播出时间：2013年4月26日
Troy and Abed switch bodies - an homage of Freaky Friday - while the valedictorian race between Annie and Shirley sees the pair team up to take down Leonard who is currently #1 in the class.
第 12 集 Heroic Origins
播出时间：2013年5月3日
Abed pieces together the past timelines of the group to show their lives have always been intertwined.
第 13 集 Advanced Introduction to Finality
播出时间：2013年5月10日
With enough credits to graduate, Jeff contemplates his future. The study group once again is faced with the darkest timeline.
