They swim, dance and play golf. They're devoted to families and grandchildren. They lead lives that are rich and full - but they intend to deliberately end their lives when they think the time is right. Final Call examines an increasingly activist minority of elderly people who say they will commit suicide before they are overtaken by frailty, illness or dependence. While most are supported in their decisions by family, in some cases there is intense anguish. And some doctors and ethicists worry that the phenomenon reflects a growing view that to be old is to be a burden on society. But as Australia's population grows older, is this a discussion the nation has to have?