This Compass series tells the extraordinary stories of three missionaries who have devoted their lives to working with people in some of the most challenging and dangerous corners on Earth.
The first is Father John Glynn, who carries out his work for We Care Foundation in Papua New Guinea. Sister Pat Murray is a Loreto sister in charge of Solidarity with South Sudan. Father Pat Brennan is a Divine Word Missionary living in the Amazonian rainforest in Brazil.
With honesty and candour, they all discuss their religious beliefs, their motivations and the meaning of a life spent in missionary service.
Compass - Lifers: 6.30pm December 1 on ABC-TV1