BBC Scotland Investigates

Documentary examining the historical child sexual abuse scandal engulfing football. Reporter Mark Daly reveals fresh allegations of sex abuse and cover ups in Scottish football's most notorious paedophile scandal, at Celtic Boys' Club. He also hears powerful accounts from former footballers who talk for the first time about the abuse they say they suffered as boys in the sport.

Human trafficking is big business, making billions for organised crime gangs around the world. Investigative journalist Sam Poling goes undercover to expose the ruthless tactics used in the supply chain and discovers shocking links to Scotland. She travels to eastern Europe to track down victims sold to Glasgow gangs for sex and witnesses the grinding poverty which is putting people at the mercy of those cashing in on human misery.

Lisa Summers reveals new evidence about why three children died in Fife in 2014 despite social work involvement. Why did Liam Fee, Madison Horn and Mikaeel Kular die and could more have been done to protect them? Lisa hears from key witnesses who have never spoken before, as well as department insiders. And the programme reveals serious concerns about whether we've been told the whole truth about cases which shocked the nation.

The amazing story of Joy Milne, who discovered she can smell Parkinson's disease. Elizabeth Quigley talks to Joy and meets the scientists who are investigating this groundbreaking ability. She also hears how Joy's family was torn apart by this cruel disease. The hope is that research on Joy will lead to new advances in the treatment and detection of a disease that is second only to Alzheimer's amongst neurodegenerative illnesses.