1Operation Allsorts It was one of New Zealand's biggest fraud cases and left a trail of destroyed or broken lives. This was a crime that deliberately targeted the weakest and most vulnerable members of our community. We identify the perpetrators, examine how it was committed, and reveal how they almost got away with it.

2"Who's your Daddy?": For infertile couples and single women it has successfully given them the one thing they most desperately crave. But it has also raised an ethical dilemma. Millions of children have been conceived as a result of sperm donation and now an increasing number of them want to know the identity of their biological father. But what about the rights of the sperm donor who might have fathered forty children and wants to remain anonymous? It is legal to share information in Australia but knowing who your father is has a downside. There's been a decline in the number of men willing to donate.

3Holy Grail It could well be one of the biggest breakthroughs in the quest for a cure for cancer. Two Australian scientists have made an important discovery. While it is a long way from being hailed as a potential cure, it has been the cause of excitement in the medical community. If the discovery lives up to its promise, then luck will have played a big part, as well as a heartfelt promise to a dying colleague.

4Preview of next week's programme.