'Khloe's Gonna Die!' Kardashians Learn Of Tristan's Cheating Scandal In Dramatic Clip

"There's a video of Tristan making out with a girl last night," says Kim Kardashian while staring blankly at the camera on the set of Keeping Up With The Kardashians.

In a teaser from the most dramatic episode yet, the Kardashian-Jenner family finds out about Tristan Thompson's cheating scandal, days before they are set to fly to Cleveland to witness the birth of his and Khloe Kardashian's first child.

"Khloe's gonna die," Kim, 37, adds, as shocked producers struggle to cope with the bombshell.

The screen then flashes to Kendall Jenner telling Scott Disick the horrible news while in the car, and scrolling through photos and quotes from the eyewitness who filmed the NBA star's makeout session with his mistress.

Scott, 35, looks at Kendall, 22, in shock, asking if the bizarre story is real, before quickly realizing the evidence is too clear to be fake.

"I'm like in shock right now I don't even know what to say," says Kendall before calling Thompson a "fu***ng idiot," and his infidelity a "sick joke."

"She def knows but she's not responding to the texts," Kendall says of Khloe, 34. "I'm literally gonna cry for her."

"I mean I can't even imagine being in Khloe's shoes," says Kourtney Kardashian during her confessional, adding that the entire scandal seems extremely "reckless," "shocking," and "obviously heartbreaking."

"The whole things makes me disgusted," admits Kourtney, 39.

After much debate between the famous family members, Kylie Jenner finally tells Khloe the news.

"No one had the courage to tell Khloe because we knew she was days away from giving birth, we didn't wanna stress her out, but we knew that it was the right thing to do," the Lip Kit mogul says in the confessional. "I didn't wanna hurt her feelings but I felt like she should hear from one of us versus on the internet."

"She's literally going to go into labor over this," says a worried Kim before picking up the phone to answer Khloe.

"What the f**k is that?" a livid Khloe asks her sister, hours before giving birth to baby True in Cleveland.

RadarOnline.com readers know that after the KUWTK episode was taped, various other photos of Tristan's mistresses emerged. And while he was ousted by Khloe and her family for quite some time, the two have managed to make things work for the sake of their daughter — at least for now.