welcome him here. it s the fourth year of the games. some 260 wounded, ill, or injured vets from the five u.s. service branches and this year from the uk, too, in seven paralympic style events open to the public. they really create more awareness about the need for physical activity programs for injured service members and wounded warriors. reporter: for six days athletes like sarah evans who lost a leg to cancer while serving in afghanistan will compete, measure their recovery, and enjoy the swede medicine of human kinship. it s more than competing and working out and medals. it s really about the people. reporter: harry, an apache helicopter pilot, knows the soldiers life and the soldiers risks firsthand. in january he completed his second tour in afghanistan, four months in deadly helmand province, and the wounded warriors programs are a cause he s embraced.