20/20 on OWN - All Episodes

Nine Perfect Strangers takes place at a boutique health-and-wellness resort that promises healing and transformation as nine stressed city dwellers try to get on a path to a better way of living. Watching over them during this ten-day retreat is the resort's director Masha, a woman on a mission to reinvigorate their tired minds and bodies. However, these nine "perfect" strangers have no idea what is about to hit them.

Countdown begins with a suspicious murder in broad daylight, leading Los Angeles Police Department officer Mark Meachum to be recruited to a secret task force of undercover agents from all branches of law enforcement that will investigate the death. But as the truth of a more sinister plot comes into focus, the team must overcome their conflicting personal agendas to unite and save a city of millions.

Returning for its eighth season, MasterChef Australia will this year take the best of what has been before and combine it with more big name international guest chefs, bright new talent and exciting challenges to create a truly remarkable series

From tunnels to towers, artillery sites, resistance nests and communication centers, Nazi Germany left their footprint throughout the world. To this day, silent remains still exist, sentinels guarding clues about plots that Hitler was unable to carry out. Secret Nazi Ruins digs up mysteries from some of the most covert projects as experts dissect and reveal the purpose of these structures, their makeup, and technical design.

12-year-old modern demigod Percy Jackson has just come to terms with his newfound supernatural powers when the sky god Zeus accuses him of stealing his master lightning bolt. Now Percy must trek across America to find it and restore order to Olympus.