"The Big Bang Theory" Season 9 is set to air a Valentine-themed segment this week. Episode 15 is titled "The Valentino Submergence" and it will see how the four couples--Sheldon (Jim Parsons), Amy (Mayim Bialik), Leonard (Johnny Galecki), Penny (Kaley Cuoco), Howard (Simon Helberg), Bernadette (Melissa Rauch), Raj (Kunal Nayyar) and Emily (Laura Spencer)-spend the day of love. Here are detailed spoilers for the next chapter of CBS's fan-favourite sitcom. Read on to find out what happens next. Also, find out where to watch the upcoming segment online via live stream.
[Spoiler alert! This article contains spoilers for "The Big Bang Theory" Season 9 episode 15 "The Valentino Submergence." Read only if you want to explore more about it.]
On Valentine's Day, the four couples try to make the most of the holiday and celebrate the day of love in a special way. According to Spoiler TV's description for "The Big Bang Theory" Season 9 episode 15, Sheldon and Amy have thought of a special way to celebrate the most romantic day of the year. The couple decides to spend the day watching a live episode of "Fun with Flags."
In the meanwhile, Howard and Bernadette make arrangements to make things between them hot and steamy with a hot tub bath together. However, their plan takes an unanticipated turn when they discover something unexpected in the hot tub. A promo video for episode 15 gives a glimpse of what exactly happens when Howard and Bernadette are just about to enter the hot tub for some romantic bath. They find floating rat in the tub that they must get rid of.
As for the married couple, Penny and Leonard spend Valentine's Day worrying about getting older. The second promo video for "The Valentino Submergence" showcases how their plan is disrupted when they are asked to wait at a restaurant where they made a reservation. The couple gets into an argument when Penny asks Leonard to bribe the manager of the hotel.
Elsewhere, things don't look great for Raj and Emily as Raj struggles to understand his feelings for the girl he met at the Comic Bookstore. Is Emily in for a breakup on Valentine's Day? Meanwhile, a preview for "The Big Bang Theory" Season 9 episode 15 teases the revelation of "the biggest 'Big Bang' secret ever!" while the details about it remain vague, fans will have to wait until the episode goes on air. Scroll down to watch the promo videos.
"The Big Bang Theory" Season 9 episode 15 airs Feb. 11 at 8:00 pm on CBS. Fans can also watch "The Valentino Submergence" on cbs.com. Stay tuned for more spoilers.