Glee aired a mostly positively-reviewed episode this week, one that took viewers to the William McKinley High School prom and, more importantly, also took them back to season one, where the focus was on fun, engaging characters, not Public Service Announcements.

Can the series build on that momentum as it inches closer to the May 23 season three finale? It will have two hours to try next Tuesday, as Fox has combined the episode "Props" and "Nationals" into one giant event.

The former will feature Tina bumping her head and envisioning her friends swapping bodies with each other, as teased in this freaky Glee photos. The latter will welcome Lindsay Lohan as a judge and take New Directions to Chicago for the competition of their lives.

Will they come out on top?!? Watch the following Fox teaser now:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.