In Sunday's mid-season finale of "Keeping Up with the Kardashians," the Kardashian-Jenner siblings continue their Montana ski trip.

Their fun is interrupted by two separate car accidents, one of which was a very frightening car crash with Khloe Kardashian at the wheel.

In the promotional video for the upcoming episode, Bruce Jenner and his gender transition is first featured followed by scenes caught by a dashboard camera as Kylie Jenner, Khloe, Kim Kardashian and baby North experience a terrifying car accident due to black ice on the road that sent their SUV out-of-control.

Khloe is shown driving, and she can be seen trying to maintain control of the vehicle. Kylie is white-knuckling the dashboard, looking absolutely terrified, as a distraught Kim in the backseat announces she's not wearing a seatbelt.

The accident happened in February, shortly after Bruce told the women about his gender transition.

After the accident, Montana Highway Patrol's Capt. Mark Wilfore told Entertainment Tonight that the incident was technically not a crash. The vehicle slid off the road into a ditch. No one was injured. There was no damage to their car.

Kim posted an Instagram snap following the accident.

"Thank you God for watching over us and keeping us safe," she said.

In a separate driving incident on the episode, Scott Disick is driving a car when the driver in front of him keeps slowing down. A 16-wheeler truck behind him nearly hits the car he is driving.

In a video clip posted by Kris Jenner, Disick is seen cursing at the other driver. Both vehicles pulled over on the road shoulder as the truck barreled past, missing them by inches. No one was harmed in that incident either.

Strangely enough, Bruce was involved in a car crash the same month -- a four-car accident in Malibu, California. His car rear-ended a white Lexus and the woman driving it was killed when her car was launched into the path of a Hummer. Bruce's crash happened two weeks before the trip to Montana.

Filmibeat.com reports that Kim also goes for a biopsy as her in vitro fertilization (IVF) treatment is failing.

Watch the mid-season finale of "Keeping Up with the Kardashians" on Sunday, May 31, at 9 p.m. ET on E!