Father Mahon and Sister Ann McKeon are missionaries on a South Pacific Island threatened by rebel forces. After a brutal attack leaves the village without a leader and Father Mahon dead, Sister Ann calls for help are answered by Captain William Wicker and his Army Special Forces Unit. They`ve been called in to train the islanders to defend themselves. The children think the Wicker is an "angel in green" - but his violent military lifestyle conflicts with Sister Ann`s peaceful beliefs. But she finds herself attracted to the `Angel In Green`.