The male victim was leaving for work shortly before 2 a.m. when he was confronted by two men in his driveway. They forced him back into the house at gunpoint.
Investigators with the L.A. County Sheriff's Department were still at the scene Wednesday morning.
Arlene Sanchez says her mother and father suffered bumps and bruises and were taken to local hospital for treatment.
"Luckily they're fine," said Sanchez. "Thank God they're OK. Hopefully they'll be home soon."
Sanchez says her father was on his way to work when he was confronted in his driveway by two men in ski masks and gloves. They forced him back into the house at gunpoint and demanded $200,000 in cash.
"When he couldn't produce any money, they tied him up," said L.A. County Sheriff's Detective Raquel Sandoval. "They pistol-whipped him. During that, the gun accidentally discharged. They were then ordered or basically put in the trunk of their vehicles while the suspects ransacked the home."
The male victim is in his 50s, his wife in her 40s. Both were bound and stuffed into the truck of their car. But they were eventually able to escape and call 911.
The suspects got away with about $2,400 in cash.
Investigators don't know why the thieves thought the homeowners would have access to $200,000 in cash.
Since the suspects were wearing ski masks, the sheriff's department does not have accurate descriptions of the two men.
Anyone with information related to the case should contact the Los Angeles County Sheriff's Industry Station at (626) 330-3322.