After losing out in registration for "The History of Ice Cream," the study group begins their European History class with Professor Noel Cornwallis. To make matters worse, the group encounters the return of the arrogant German students from last season, which Jeff and Shirley faced over the foosball table. Meanwhile, much to Dean Pelton's dismay, Chang makes his return to campus.

As the campus strives to get to the bottom of Chang's memory loss, Dean Pelton enlists the group to help secure a grant for further medical research and Abed films the activities for a documentary. Jeff, however, suspects there is more to Chang's memory loss than meets the eye.