Battle for Cannibal Island

It's 1852 and cousins Patrick and Beth sail to Fiji on the HMS Calliope under the command of Captain James E. Home, where they find that the Christian Fijians are at war with the non-Christian Fijians. Missionary James Calvert's trying to make peace and suggests that the captain allow peace negotiations on board the British vessel. Patrick and Beth learn about sacrificial living when they observe Calvert's determination to live on Fiji despite the dangers and impoverished conditions, and that he's willing to risk his life to live as Jesus would.