Seconds later, they fell through some thin ice.
Two teenage brothers from Nebraska saw it happen, but before they could reach the site, a mother and her daughter also fell in.
That's when the brothers grabbed a hose and used it to pull all four to safety.
"When I got about a foot out there, I reached as far as I could and I grabbed the little kids and since they were so little, I just picked them up and tossed them off the ice," said one of the brothers, Brandon Hile.
All four victims were rushed to a nearby hospital with symptoms of hypothermia, but all are expected to recover.
