Herpetologist go on a unique crocodile diving adventure to find out more about these cave systems, and how the reptiles use them.
In April 2008, a Mexican tourist destination's safe waters suddenly start to suffer a sustained series of attacks on surfers.
A crack-addicted nursing student faces 25 years in prison when she's caught trying to smuggle cocaine from Argentina to the UK.
When a Formula One racer joins forces with investigators looking into the crash of Lauda Air Flight 004, they uncover a shocking design flaw that could affect passenger planes around the world.
Truk Lagoon: Underwater footage of Truk Lagoon. This image is from Drain the Ocean: WWII.National Geographic Channels/Chris Selman