Glee's third season premiere date is just around the corner, and it looks like Sue Sylvester (Jane Lynch) is already causing trouble for the New Directions crew...and only on the second day of school! In a new promo for the the Emmy-nominated series, Sylvester threatens to launch a war against all arts programs in McKinley High. No need to worry: "General Schuester" (Matthew Morrison) is on hand to fight back. Take a look below at a new sneak peek as the students enter their senior year. Be sure to tune in to the return of Glee on September 20 on FOX!