Tom Cruise and John Travolta say the Church of Scientology is a force for good. Others disagree. Award-winning journalist John Sweeney investigated the Church for more than half a decade. During that time he was intimidated, spied on, and followed, and the results were spectacular: Sweeney lost his temper with the Church's spokesman on camera, and his infamous 'exploding tomato' clip was seen by millions around the world.

Marc Headley provides an insider's view of life as a member of Scientology's "Sea Organization". Marc worked at Scientology's secret desert compound, which houses all Scientology management, for 15 years. The 500-acre property is located deep in the California desert. The local townspeople were told lectures and films were made there. But is that all that was happening? It is the location of a multi-million-dollar home for L. Ron Hubbard, built two decades after his death. It is the home of Scientology's current leader, David Miscavige.

Always seeking to be an obedient Priesthood girl, in her teens Rebecca Musser became the nineteenth wife of her people's prophet: 85-year-old Rulon Jeffs. Finally sickened by the abuse she suffered and saw around her, she pulled off a daring escape and sought to build a new life and family.

Six days ago, astronaut Mark Watney became one of the first people to walk on Mars. Now, he's sure he'll be the first person to die there. After a dust storm nearly kills him and forces his crew to evacuate while thinking him dead, Mark finds himself stranded and completely alone with no way to even signal Earth that he’s alive - and even if he could get word out, his supplies would be gone long before a rescue could arrive. But Mark isn't ready to give up yet.

This is the fascinating true story of a brutal murderer and the detectives who worked the cold case for six years in order to bring him to justice. Combining cutting-edge forensic techniques with old-fashioned detective work, a team of detectives worked to build a case against their prime suspect. But it was a race against time: would he strike again? No one could predict that the killer's appearance on the gameshow Bullseye would provide bizarre but crucial evidence. The operation is now recognised as one of the greatest cold-case reviews ever undertaken in the UK.