Mysteries of Sink Holes

This feature-length documentary dives into sinkholes, a terrifying phenomenon that has plagued humanity for thousands of years. Sinkholes form suddenly and without warning. The film explores sinkholes high up in the mountains of south west China and sinkholes hundreds of metres underwater in the Gulf of Mexico. Laura Gerber nearly drowned in a water-logged sinkhole. Matt Pritchard was forced to watch a chasm slowly tear his home apart. But how do sinkholes form, some being natural and others human-induced? In Florida's infamous 'Sinkhole Alley', with over 20,000 recorded incidents, and in Guatemala City, where an epic 20-metre sinkhole swallowed up a three-storey factory, destructive sinkhole secrets are revealed. But sinkholes don't just bring destruction. Cutting-edge technology reveals living environments deep within sinkholes. Cavers and divers pursue exhilarating archaeological expeditions 80 metres deep, unearthing hidden worlds dating from ancient Rome and the Maya civilisation.
Trailer
Recently Updated Shows

48 Hours
48 Hours is a CBS news magazine that investigates intriguing crime and justice cases that touch on all aspects of the human experience. Over its long run, the show has helped exonerate wrongly convicted people, driven the reopening -- and resolution -- of cold cases, and changed numerous lives. CBS News correspondents offer an in-depth look into each story, with the emphasis on solving the mystery at its heart. The program and its team have earned critical acclaim, including 20 Emmys and three Peabody Awards.

Invasion
Earth is visited by an alien species that threatens humanity's existence. Events unfold in real time through the eyes of five ordinary people across the globe as they struggle to make sense of the chaos unraveling around them.

Wednesday
Smart, sarcastic and a little dead inside, Wednesday Addams investigates a murder spree while making new friends — and foes — at Nevermore Academy.

Alien: Earth
When the mysterious deep space research vessel USCSS Maginot crash-lands on Earth, Wendy and a ragtag group of tactical soldiers make a fateful discovery that puts them face-to-face with the planet's greatest threat.

Peacemaker
This James Gunn-created series continues the saga of Peacemaker, a vainglorious superhero/supervillain who believes in peace at any cost — no matter how many people he has to kill. After a miraculous recovery from his duel with Bloodsport, Peacemaker soon discovers that his freedom comes at a price.