E1
Breaking stone slabs, Diet Coke and Mentos geysers, Frisbee dog.
E2
Blending things you shouldn't, "Mad" Chad Taylor juggles chainsaws, and bare-handed bottle breaking.
E3
Throwing water on a grease fire, the power of dry ice, the wonders of soap bubbles, a tablecloth pull trick.
E4
The Fuel Girls' fiery breath, skateboard champion Greg Lutzka's killer kick flips, and Russ Byars' world record winning stone-skipping technique.
E5
Pole-vaulting, the effects of a Taser and a jackhammer on the human body.
E6
W.R. "Rusty" Haight of the Collision Safety Institute plays a human crash-test dummy, an archery demonstration is observed.
E7
Observing a hummingbird, a professional pool player's skills, a samurai swordsman's deadly strike, and an accident involving tempered glass.
E8
A closer look at free running tricks, observing water droplet art, and Non-Newtonian Fluids.
E9
The freezing power of liquid nitrogen, what happens when bullets collide with various types of body armor, and a closer look at fireworks.
E10
The sonic boom of a bull whip, no two wet dogs shake exactly alike, and a Boston Bruin's star to put two hockey sticks to the test.
E11
Storm-blown glass, make a mess with paintballs, serve up a flaming cocktail with some trick bartenders, and spring into action with the Yo Yo Pros.
E12
The destructive force of power tools, the seemingly physics-bending motions of break-dancing, and why a bullet fired underwater goes askew.
E13
A closer look at mountain biking tricks, ice skating, and the art of throwing playing cards.
E14
Boston College cheerleaders perform various stunts, a closer look at how a baseball can shatter a bat, and an Olympic skeet shooter is observed.
E15
Sharpshooting tricks are observed, a closer look at cooking with the Feasty Boys, using a Schlieren camera to capture sonic booms, and a boomerang expert demonstrated proper throwing techniques.
E16
A world-class barefoot skier is observed, a Samurai Master returns to slice through various meats, the world's fastest drummer performs, and Jeff unveils his electrifying new art project.
E17
What really happens in a movie fight scene, the secret behind bowling a strike, and the noisemakers behind a cicada and a rattlesnake.
E18
The pain of body modification, the energy flow of a Wushu master, quick-stepping tap dancers, and what happens to a firecracker in a wine glass.
E19
Trap-testing with Rev. Tommy Gunn and the high-flying Cirque du Soleil, exploring their inner stuntmen, and capturing the sophisticated simplicity of making music and weed-whacking.
E20
Putting various items through a lawn mower and wood chipper; Cirque Du Soleil rehearsal.