After a brief hiatus, "The Big Bang Theory" will finally air a new episode on Thursday, which promises to be hilarious, as Sheldon and Leonard attempt to sneak onto George Lucas' Skywalker Ranch.

The upcoming episode, which is aptly titled "The Skywalker Incursion," will focus on Sheldon and Leonard as they sneak their way into meeting one of their idols, reports The Hollywood Hills.

In a preview video, Sheldon and Leonard are thrilled and determined to meet George Lucas.

"I'm so excited, and I just can't hide it," exclaims Sheldon, who is sitting in the passenger seat while Leonard is driving to the ranch in the video.

However, things don't go as planned when he gets chased by security guards with Tasers on the ranch.

According to Carter Matt, the synopsis for the episode reads as follows:

"When Leonard and Sheldon are invited to speak at UC Berkeley, they take a detour to try to meet an idol. Also, when Bernadette and Howard battle over the fate of his Dr. Who TARDIS, Raj and Amy offer to settle the dispute with a game of ping pong."

Guest stars include actor Tate Ellington as Mitchell and actors Michael Dempsey and Mark Barrett, who will play security guards.

In next week's episode, TV viewers will be introduced to Howard Wolowitz's long-lost half-brother on April 9. Entertainment Weekly revealed that Wolowitz's younger brother, Josh, will be played by "Victorious" star Matt Bennett in the episode, which is titled "The Fortification Implementation."

Josh, who is Howard's half-brother from his father's side, unexpectedly comes to town and shows up on his doorstep. Howard's estranged father, however, has not yet appeared on the series.

Bennett has also starred in "Bridesmaids" and "iCarly."

Season 8, Episode 19 of "The Big Bang Theory," "The Skywalker Incursion," will air on Thursday, April 2 on CBS.

Watch a preview below.