The Vietnam War ended nearly 40 years ago, but the casualties continue as birth defects plague the country.
There are claims that thousands of children continue to be born with horrific facial deformities due to the 20 million gallons of Agent Orange chemical sprayed by the United States.
The Vietnamese call the disfigured youngsters 'the children of Agent Orange'.
Da Nang in central Vietnam is thought to have the highest level of congenital deformity in the world.
Inside Out's Mark Jordan joins a team of top London plastic surgeons on their unpaid mission to help these children through the charity Facing the World.
Inside Out is broadcast on Monday, 9 September at 19:30 BST on BBC One London and nationwide on the iPlayer for seven days thereafter.