Alert: Missing Persons Unit - All Seasons

Ancient Aliens explores the controversial theory that extraterrestrials have visited Earth for millions of years. From the age of the dinosaurs to ancient Egypt, from early cave drawings to continued mass sightings in the US, each episode in this hit History series gives historic depth to the questions, speculations, provocative controversies, first-hand accounts and grounded theories surrounding this age old debate. Did intelligent beings from outer space visit Earth thousands of years ago?

The Challenge: All Stars features twenty-two of the most iconic, boldest, and fiercest Challenge All Stars from the original Real World and Road Rules, returning for a chance at the ultimate competition as they vie for their shot at the $500,000 grand prize.

After the First 48 revisits some of the most powerful cases originally featured on the First 48 and features exclusive interviews with detectives, prosecutors, defense attorneys, and families of victims. After the First 48 takes viewers through the dramatic and emotional inside story; from the investigation, to the murder trial itself, the verdict and beyond.

The First 48 follows detectives from around the country during these first critical hours as they race against time to find the suspect. Gritty and fast-paced, it takes viewers behind the scenes of real-life investigations with unprecedented access to crime scenes, autopsies, forensic processing, and interrogations.

When a small plane traveling from Guatemala carrying a small group of passengers, crew and a pilot crashes in the Mexican jungle, all the bodies are recovered and placed in a morgue. But it turns out that only one of them died in the crash. The other passengers were murdered afterwards, each one in a unique way. But by whom? And why? As the story unfolds in flashback, we meet the survivors as they fight against the heat, a shortage of supplies, the many dangers of the jungle…and each other. The setting becomes increasingly tense and claustrophobic as, one by one, they are dispatched with a series of shocks that bring us ever closer to the truth and – at the very end – a jaw-dropping reveal.