In a preview for Sunday's episode, Kim was in the car with best friend Jonathan Cheban when she got a hysterical call from sister Khloe Kardashian. "Oh my God, Kim," she said frantically, as Kris was heard crying for Khloe in agony.
"You gotta come. Your whole security just f--king tackled Mom. We just called 9-1-1. This is so crazy," Khloe said in a jumbled mess, as Kris cried again, "Oh my God, my neck!"
Kim's eyeballs just about came out of their sockets. "Security just tackled my mom?!" she shouted in disbelief. "Wait, wait, I'm rushing home right now, but what happened?!"
"Come over here! I'm outside. The ambulance is on their way here now," Khloe yelled. "They were in the backyard, and Mom came down, and when she showed up, I told them, 'Go around,' and they just tackled her! Mom?! I gotta call you back."
Jonathan was speechless, and Kim was panicked.
"I have to look at the surveillance right now," she said, pulling up the footage on her phone. "Ohhh. My God."
"Keeping Up with the Kardashians" airs Sundays at 9 p.m. on E!