MIAMI (CBSMiami) – One man was rushed to the hospital after flames erupted behind a Miramar home.

The fire started at around 2 a.m. at 7741 Alhambra Boulevard.

Mileidy Nuñez, who lives in the house with four family members, said they were all asleep and only awoke when a man who had been driving by began banging on their front door.

“Knocking, banging on the front window because the house is on fire,” she said.

Nuñez said that’s when she saw the heavy smoke and flames.

“I was all the way in the back where the fire was started with my two children sleeping. My brother and I heard him screaming ‘oh my God’,” she said.

Surrounded by smoke and fire climbing up the walls, Nuñez said she barely made it out with her two children and her brother. A neighbor who lives in an attached apartment also made it out.

Nuñez’s 55-year-old father wasn’t so lucky. He was trapped inside.

“He was screaming inside but we couldn’t go inside because there was too much smoke,” she said. “I was screaming and screaming because I was trying to like save him but I thought I was going to burn.”

Firefighters arrived and rescued him. He was taken to a hospital in critical condition, suffering from severe smoke inhalation.

Surveying the collapsed roof, charred furniture, and twisted melted metal, Nuñez said she will be forever grateful to the stranger who saved their lives.

“Thank God we were saved and alive because that man saw it in the street and he came up to us and started banging on the window. If not we would’ve all been dead,” said Mileidy Nuñez.

There’s no word on what sparked the fire.