2. Storm Chasers

Charlie and Kirby look at storms, hurricanes and tornados; storm chasers in Colorado; the science behind weather.

3. Sunken Treasure

Charlie and Kirby learn why shipwrecks happen; researching and exploring sunken treasures.

4. Dog Days

Charlie and Kirby explore how dogs were domesticated and how different breeds developed.

5. Sharks!

The seven senses that sharks have; getting up close and personal while cageless shark diving.

6. Animal Headgear

Animal headgear; how antlers and horns are different.

7. Survival 101

Learning the ropes to survival 101; food and water needs; how elements impact body temperature; tricks to tackling life in the great outdoors.

8. Alaska's Animals

Animals adapt to life in the freezing-cold weather of Alaska.

9. Buggin' Out

Spiders, ladybugs, mayflies and other arthropods.

10. Animal Invaders

Invasive species are the new neighbors no one wants.

11. Sense-Abilities

Humans' five senses; taste buds; jobs that use taste as their primary tool; human evolution.

12. Roller Coasters

Charlie and Kirby unlock the secrets behind roller coasters; the physics of extreme rides; thrill-ride design.

13. Kirby the Falconer

Kirby explores how to become a master falconer and meets some amazing birds of prey.

14. Caves

Charlie and Kirby explore caves in Virginia; spelunking and rappelling.

15. Action Sports

Charlie and Kirby are off to California to meet some of the most innovative minds on the planet: action sports athletes who have to train like athletes but think like engineers -- and Charlie and Kirby design and execute their own tricks.

16. The Case of the Stolen Bike

A heist has been committed at HQ and now Charlie and Kirby are on the case!

17. Astronauts

Charlie and Kirby are heading off to NASA to unravel the weird world of ASTRONAUTS!