Oscar (Matthew Perry) has to choose between his girlfriend and his friend in the upcoming premiere episode, titled "London Calling," of the third season of the American sitcom "The Odd Couple."

It is going to be a tough time for Oscar. He has no other choice but to choose between his romantic plans with Charlotte (Teri Hatcher) and helping Felix (Thomas Lennon) save his relationship with Emily (Lindsay Sloane). Apparently, Emily has come to realize that she needs to extend her stay in London, but this may cause Felix to fall apart.

In the sneak preview of the upcoming episode, Felix is seen barging into Oscar and Charlotte's bedroom in the middle of the night to find the best hotspot so he could clearly video chat with his girlfriend Emily. He finds the best spot on the couple's bed, in between them. Although Oscar understands the long distance relationship of Felix and Emily, it seems like they are uncomfortable with Felix's presence. Emily, on the other hand, also looks surprised to see Oscar and Charlotte in the video chat.

Emily, however, breaks to Felix that she has to stay in London for an added job. Felix fears that because of their distance, someone or something may come between them.

Also, music group Boyz II Men is set to appear as themselves on the premiere episode. Apart from them, Entertainment Weekly also reported that "Cougar Town" star Busy Philipps will be guest starring this season. She will play Natasha, a potential love interest for Felix. She will meet with Felix at a bar; she takes him home and ends up in an intimate night with him. However, the fling turns out to be serious when she decides not to leave Felix and his apartment. This means that someone will indeed get in between Felix and Emily's relationship.

"The Odd Couple" season 3 premieres on Monday, Oct. 17, at 9:30 p.m. on CBS.