Jenelle Evans pulls a gun on a man while in car with son Jace in scary 'Teen Mom 2' incident

Things got serious on Monday’s episode of Teen Mom 2.

In a frightening scene, Jenelle Evans picks up her 8-year-old son, Jace, and while driving down the road having a normal conversation, a white truck that had been tailgating them swerves in front of their vehicle and slams on the brakes, causing both Jenelle and Jace to lurch forward in their seats.

“Are you f**king kidding me, dude? Oh my god,” Jenelle screams.

Then 26-year-old reality star then calls the police to report the incident. "He was tailgating me the whole way, would not stop and then he races in front of me and purposefully slammed on the brakes at 70-something miles an hour," she exclaims. "I almost got veered off the side of the road, like, that’s how bad I had to slam on the brakes."

Jenelle then chooses to go off the highway and follow the man to his home. As they approach the house, Jace says, “If he tried to get and hurt you, I could grab this nerf gun and whip him.”

Jenelle then begins to take photos of the man’s house on her phone and shouts at him, “I called the cops, they’re on the way. I got three cameras in my car. They got the whole thing. OK, I just called the law on you. You were tailgating me, you dumba**.”

She then accidentally backs into the man’s mailbox, prompting him to angrily shout, get back in his truck and seemingly block her from exiting. Jenelle was on the phone with her husband, David Eason, at the time of the incident, and shouts, “Now he’s blocking me in. Dude, he just hit my car!”

A bang was heard as the truck seemingly collides with Jenelle’s front bumper. MTV cameras then cut to a black screen that reads, “At this point, Jenelle pulled out her firearm.”

The show did not air the moment Jenelle allegedly pulled out a weapon, but moments later, she was seen speeding out of the neighborhood, still on the phone with Eason.

“What are you doing at his f**king house? Well, don’t f**king god d**n follow him!” her concerned husband yells while on the phone with her. “You don’t follow a grown man to his f**king house!”

Finally the man in the white truck stops following Jenelle, but she is then pulled over by a police officer on the highway. Visibly upset, Jenelle retells the story, adding that Jace “almost hit the dashboard” when the man braked in front of them. Her son also confirms to the officer that the man “was trying to block her” by his house.

When the police officer asks Jenelle to exit the car to take her statement, Jace calls Barbara Evans, Jenelle’s mother and his legal guardian, to tell her what happened.

“Mommy got pulled over. No, this guy was trying to block mommy in a dirt road. We turned on a dirt road and this guy was trying to block us,” Jace explains. “He slammed into us. Then mommy just pulls this gun out at the guy and then he said, ‘You better not f**king shoot.’ Then mommy finally turned out and then now we got pulled over.”

The episode ended with Jenelle talking to the cops and Jace still sitting in the car. According to People, the alleged incident took place in April, and Jenelle has yet to directly respond to the episode on social media.

ET is reaching out to police as well as Jenelle's reps and MTV regarding the incident.