As the gang's 6th year at the school comes to a close, they all ponder what a 7th year would look like.
A man from Britta's past infiltrates the school as a gurilla marketer. Jeff and the rest of the gang try to determine if Elroy really likes them or not.
Dean Pelton lets two designers test their new social networking application at Greendale, leading to a war among the students; Professor Hickey decides to go underground until the battle ends.
Jeff helps Duncan pursue Britta.