It was about a group of kids from Liverpool (if i remember) being put onto a boat where a boy with glasses slips off, then they are taken to build a church (in Africa or Asia?), where they are abused (one scene i remember is where a wasp in a glass is put on one of their stomachs) and then a boy burns down the church in the end because the priest was abusing the children. Its been bugging me for years and would greatly appreciate any answers. The drama was most likely on BBC2 possible Channel 4. Many Thanks 