Two series will collide in the upcoming episode of American sitcom "The Big Bang Theory." The nerds of Pasadena, California will open their portals to "2 Broke Girls" star Beth Behrs on Thursday at 8 p.m. EST on CBS.

In episode 14 of the 11th season, titled "The Separation Triangulation," Raj (Kunal Nayyar) is back on the dating game. Raj's new love interest, Nell, is a school teacher who recently parted ways with her husband and is played by the talented Behrs. Just like all of his past relationships, Raj appears to be struggling yet again. This time, it is not about his insecurities nor neediness, but because of Nell's ex-husband. Nell's ex-husband, Oliver (Walton Goggins), seems to be experiencing an all-time low after they parted ways.

Entertainment Weekly released an exclusive first-look photos for the episode. Raj and Nell are seen all smiles, while the astrophysicist is preparing breakfast. A promo video for the episode shows Raj trying to console brokenhearted Oliver but ends up making him cry.

On the next episode, Sheldon (Jim Parsosn) will move back to his old room temporarily and will of course drive Leonard (Johnny Galecki) crazy. However, this time, Sheldon will get on his ex-roommate's nerve by being a "model tenant." Leonard will also be helping his wife Penny (Kaley Cuoco) with work in this week's episode.

Many fans are excited for Caroline Channing's (Behrs charater in "2 Broke Girls") screen time in the series. Behrs teased fans back in on Jan. 10 when she posted a picture of her on the set of "The Big Bang Theory" with the caption, "Tape Night" on Instagram.

The series "2 Broke Girls" was canceled back in 2017 after six seasons. The show unlike "The Big Bang Theory" had trouble with ratings and other factors. "The Big Bang Theory," on the other hand, is in the middle of season 11 and will return for season 12.