‘We’re happy to be safe’: Group rescued from Dorian floodwaters Video

Now Playing: Current sweeps residents down flooded street in aftermath of Hurricane Dorian

Now Playing: Flood-prone areas of Carolinas, Georgia racing to beat hurricane

Now Playing: Aerial footage shows devastation in Bahamas after Hurricane Dorian

Now Playing: Wisconsin mom killed while teaching son to drive, police say

Now Playing: Images from Bahamas reveal scope of hurricane’s destruction

Now Playing: ‘We’re happy to be safe’: Group rescued from Dorian floodwaters

Now Playing: Hurricane Dorian targets Southeast

Now Playing: More than 2 glasses of soda daily linked tied to higher risk of death: Study

Now Playing: Police video shows officers rescuing driver after fiery crash

Now Playing: At least 5 hurt in accident involving charter bus carrying children

Now Playing: Bahamas woman brings in 97 homeless dogs during Dorian

Now Playing: Mitch McConnell responds to question on background check bill

Now Playing: Walmart to end sales of ammunition for handguns, assault rifles

Now Playing: All 34 passengers aboard burning dive boat presumed dead

Now Playing: Dorian on track to ride coastline from Florida to Carolinas

Now Playing: Olympic gymnast Simone Biles breaks silence on brother’s arrest

Now Playing: Teen confesses to killing entire family in Alabama

Now Playing: Teen goes blind after only eating chips, white bread, fries and pork

Now Playing: Dorian lays waste to Bahamas, makes way toward US