Special features of this DVD: Dolby Digital ; episode selection.

Mother Nature unleashes spectacular natural phenomena as Jay, Elisha and Tyler witness the inner workings of Niagra Falls, an actual lightning storm, and try to get out of the way of an avalanche.

Ice: PMK chills out when Vanessa shows us how Hollywood creates those magical winter snow scenes for the movies. Elisha gets the rink ready for a big hockey game, and Tyler goes deep inside NASA's ice tunnel to discover how airplanes are made safe for flying.

Water: Get your wetsuit on! Water, water everywhere as Tyler goes behind Niagara Falls to see how the massive falls keep electricity flowing. Next, he takes to the seas to help with a real emergency oil spill cleanup. Elisha takes a run down the rocky rapids in an ultra-modern, indestructible raft.

Earth power: On their most awesome journey yet, Tyler and Elisha brave the elements to experience some of Earth's wonders firsthand. In Hawaii, Elisha scoops out a cup of molten lava from a volcano while Tyler goes up north to Whistler, British Columbia, to set off an avalanche.

Electricty: Get charged to explore the shocking world of electricity. Elisha and Tyler create a real lightning storm, build a windmill that will help power a whole house, and see the smallest and largest lightbulbs ever made.

Not rated.

DVD.