The bizarre encounter saw the terrified family call 911 to report alleged 'non-human beings' outside their home.
The peculiar series of events began back on April 30th at around 11:50pm in the evening when the family witnessed an unidentified object crash-land on their property.
Next thing they knew, two strange 'entities' had appeared within the vicinity of the crash site.
"There's like an 8-foot person beside it and another one is inside and it has big eyes and it's looking at us - and it's still there," one of the family members said during a call to 911 dispatch.
"So, there's two people, there's two subjects in your backyard ?" the dispatcher asked.
"Correct and they're very large," the called replied.
"They're like 8 foot, 9 feet, 10 foot. They look like aliens to us. Big eyes. They have big eyes. Like, I can't explain it, and big mouth. They're shiny eyes and they're human. They're 100% not human."
Intriguingly, several other people also claimed to have seen something in the sky that evening including a Las Vegas Metro police officer who recorded an object on his body camera.
A local news report covering the incident can be viewed below.