• Kunal Nayyar attends The Paley Center For Media's 33rd Annual PALEYFEST Los Angeles 'The Big Bang Theory' at Dolby Theatre on March 16, 2016 in Hollywood, California.

Kunal Nayyar attends The Paley Center For Media's 33rd Annual PALEYFEST Los Angeles 'The Big Bang Theory' at Dolby Theatre on March 16, 2016 in Hollywood, California. (Photo : Getty Images/Matt Winkelmeyer)

"The Big Bang Theory" Season 10 episode 14 will not be airing on Jan. 26. CBS fan-favourite sitcom will be on a hiatus until Feb. 2. When the show returns, fans will see Raj's ex-girlfriends return. Here are a few spoilers revealing the plot details for the upcoming segment titled "The Emotion Detection Automation." Read on to find out what happens next.

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[Spoiler alert! This article contains spoilers for "The Big Bang Theory" Season 10 episode 14 "The Emotion Detection Automation." Do not read further if you don't wish to know more about it.]

In episode 13, Penny and Leonard dealt with some marital issues. The differences between the couple forced Penny to take Amy's help. The two ladies went on a spa date and talked about it. As for Leonard, he approached Sheldon for a solution and asked him to help him develop a relationship agreement just like Sheldon and Amy's.

"The Big Bang Theory" Season 10 episode 14 will find Raj in a tight spot. The highly anticipated episode will feature Raj's reunion with his four ex-girlfriends, according to Entertainment Weekly's 25 Scoops in 25 Days post.

According to the website, Emily (Laura Spencer), Claire (Alessandra Torresani), Lucy (Kate Micucci), and Emily (Katie Leclerc) will all return to the show. They have all agreed to meet up Raj and help him determine why his relationships do not last long. All his past girlfriends will come together to make him learn an important lesson about long-term relationships and where he may have gone wrong.

Fans know that Raj is the only one in his group of friends who is still single. Meanwhile, Howard, Sheldon, and Leonard are in a meaningful, committed relationships. Thus, Raj organizes a focus group to talk about his past relationships and learn from his mistakes.

The news publication has also published photos from "The Big Bang Theory" Season 10 episode 14. It teases the events of the series and gives a glimpse of Raj's meeting with his ex-girlfriends.

"The Big Bang Theory" Season 10 episode 14 airs Feb. 2 at 8:00 pm on CBS. Stay tuned, more spoilers and updates are expected soon.