As a new Palestinian leader signs a truce with the Israelis there is hope that after four years of bloody fighting Middle East peace talks might resume. This summer Israeli Prime Minister Ariel Sharon is planning to remove Jewish settlers and return the disputed Gaza Strip to Palestinian control. But Israel is bracing for a reaction from the settlers in both Gaza and the West Bank. Israeli security forces are warning that extremists among the settlers could with one major act of violence raise the prospect of civil war in Israel or trigger a conflict with the wider Muslim world. As the possibility of peace once again seems real FRONTLINE takes a close look at the small group of Israelis who are vowing to derail it.