Man, 3 grandchildren stranded on Pace Picnic Island after boat breaks down

A Miami fire boat rescued a man and his three grandchildren Wednesday after they got trapped on Pace Picnic Island.The Campoalegre family planned to spend the day on the island off Biscayne Bay.Miami Fire Rescue officials said the children's father dropped off his kids and their grandfather first, and his boat broke down as he was heading to get the rest of the family."It was really scary," Lorena Campoalegre said. "My grandpa was sitting down, and we were screaming (and) putting (up) help signs