In the final episode of the series, a freight train carrying toxic materials crashes into a truck trapped on a railroad crossing in Louisiana. A husband's birthday gift to his wife takes a drastic turn when their plane suffers engine failure 3,000 meters above Utah. Weeks of heavy rainfall cause catastrophe in Canada, as hundreds of trees hurtle toward terrified onlookers. Finally, unsuspecting tourists capture the tragic events of a tsunami in Thailand.

In Russia, passengers are trapped on a bus that is rapidly filling with boiling water. A British kayaker gets stuck inside a waterfall. Travelers narrowly escape from a car swallowed by a landslide in China and six tourists narrowly avoid a clash with a dissolving iceberg in Greenland. Finally, billions of insects in Iceland hatch at once, and a man captures a truly electrifying moment - all in this shocking episode.

A truck trapped on a railroad crossing in North Carolina turns into 40,000 kilograms of scrap metal when the train coming toward it can't stop quickly enough. In Texas, a pregnant woman struggles to make it to the hospital in time to give birth, and in China, a factory worker narrowly escapes a collapsing building. Meanwhile, a plane in Hawaii crashes into shark-infested waters, a confused buck knocks out a biker in South Africa, and a fire tornado is caught on camera in California.

A deadly cloud of toxic gas and ash overwhelms hikers following a volcanic eruption at Japan's Mt. Ontake in this action-packed episode. In Russia, a tornado strikes without warning and cameras capture the devastation left behind. In Vietnam, Typhoon Haiyan carries chaos downstream when a huge barge breaks free of its moorings. Plus, a snowmobiler tries to tackle an 850-meter hill in Greenland, a 73-year-old hang glider faces danger in California and South America's biggest cat demonstrates incredible hunting skills in Brazil.

A skydiving incident in California leaves an 80-year-old grandmother hanging on for her life in this episode of CHAOS: CAUGHT ON CAMERA. An avalanche buries a seasoned skier and his friends desperately try to rescue him from underneath meters of snow in Switzerland. Finally, a couple is caught in the midst of a raging fire in Russia and the only way to escape is to drive through the middle of it.

A volcanic eruption engulfs Japan's Mt. Ontake, a tornado strikes without warning, a huge barge rushes uncontrollably downstream, a snowmobile takes a terrifying tumble and a 73-year-old hang glider dances with death.

A grandmother is left hanging on for her life when a skydive goes drastically wrong. An avalanche buries a skier and a couple is caught in the in the midst of a raging inferno and the only way to escape is to drive through the middle of it.

A fertilizer plant explosion rocks the world, an unlucky construction worker takes a potentially lethal leap, a family is trapped in an upturned car that is filling with water, a base jump goes wrong and a botched rescue attempt leaves dozens in icy water