During the Vietnam War, the U.S. dropped more than 2.5M tons of ordnance on Laos during - equal to a planeload of bombs every eight minutes, 24 hours a day, for nine years – making Laos the most heavily bombed country per capita in history. Australian bomb disposal specialist Laith Stevens has to train a new young "big bomb" team to deal with bombs left from the US "Secret War", but meanwhile, the local children are out hunting for bomb scrap metal. Vividly depicting the consequences of war with the incredible bravery of those trying to clear up the mess.