The geeky gang will take a trip down memory lane as they reenact their high school prom in the next all-new episode of "The Big Bang Theory."

In the upcoming episode, "The Prom Equivalency," the girls will decide to host a prom night on the roof of the apartment building. While this will allow Howard, Leonard, and Raj to revisit a milestone moment from their youth, it will make Sheldon feel awkward and uncomfortable due to all the romantic gestures that correspond with the glitzy event.

Although Penny and Leonard have been bumping heads since she landed a new high-powered job, and preview photos from the new episode suggest that they will settle their differences during the occasion, notes Hypable.com.

Last week, the couple clashed when Leonard found out that Penny was pretending to be single at work in order to gain more sales. As a result, a doctor played by guest star Billy Bob Thornton showed up at Penny's doorstep with flowers because she gave him the wrong impression.

Romantic sparks also just may fly between Sheldon and Amy in the next episode.

In addition, Laura Spencer will return as Raj's love interest, Emily, while actress Kara Luiz is going to pop up as Jeanie, Howard's cousin who he supposedly lost his virginity to. He will unexpectedly run into her at the party, reports Carter Matt.

Actor Kevin Sussman will also return as the comic-book store owner and Mrs. Wolowitz's roommate.

According to the Hollywood Hills, the official synopsis for "The Prom Equivalency" reads as follows:

 "Amy and Bernadette will organize a prom to be held atop the guys' apartment complex, but Sheldon will be leery of all the prom pomp circumstance and romancing that goes with it. Guest stars will feature: Kevin Sussman as Stuart, Kara Luiz as Jeanie and Laura Spencer as Emily."

The Big Bang Theory season 8, episode 8, "The Prom Equivalency," will air on Thursday, Nov. 6, at 8 p.m. on CBS.

Watch a teaser video below.