The makers of Grayl start their quest for funding with Brook and Brian putting the water filtration system to the ultimate test. Drinking filtered toilet water.

Brook and Brian look over the Rocketskates in the lab, but the true test comes with a test on the streets. Find out what happens after a shaky start.

Brian and Brook know the only place to test Reflex Strike, the boxing glove designed to sharpen your reflexes, is in the ring. They have some fun, but does it stand up to a pro?

The Droidel made it through the expert test, but the consumer test has the father-son team worried if their little social robot is doomed.

Liquid Off is off to a decent start with a viable expert test, but the team knows it is how the consumer perceives it that guides whether Marc makes an investment.

The first step is the pitch, and the panel pulls no punches if they aren't sold on an idea right out of the gate. But, they will rely on the tests to form their final opinion.

Innovative duo showcase their new brand of water filtration.

Check out the helicopter you fly with your brain.

Brook and Brian get the briefing on how the Mind Rider bike helmet uses brainwave sensors to gather information about a rider and the environment around them.

The Zero Hour flashlight/power source had people talking about its versatility and design, but what did they say about the price?

Passing the expert test, Bondic moves on to face consumers. After a few tries the testers seem to get it, but what does Marc think?

Straight out of high school these makers have created a Roboarm which they hope will revolutionize the prosthetics industry.

Two regular firefighters who got frustrated with weak laces on their boots took to their garage to dream up something that would hold up. But do they hold up to their claim of "indestructibility?"

This invention was inspired after the inventor saw construction crews using fragile home appliances on build sites. He’s got a partner who made the Coffeeboxx look pretty rugged, but is it?

Brook and Brian can’t wait to test this unique grill. JR, the inventor, boldly claims this wood burning stove – that can work in an environment – get reach 1000 degrees in five minutes. He’s going to be held to his word.

The judges love the advanced prototype called the "Bionic Boot." The boots mimic an animal's leg and claims to allow the user to run 25mph, but Marc's concern is safety.

Brook and Brian look over the Rocketskates in the lab, but the true test comes with a test on the streets. Find out what happens after a shaky start.

Innovative duo showcase their new brand of water filtration.

Is this egg-shaped tricycle a commuter's dream machine?

The makers of Grayl start their quest for funding with Brook and Brian putting the water filtration system to the ultimate test. Drinking filtered toilet water.

The Droidel made it through the expert test, but the consumer test has the father-son team worried if their little social robot is doomed.

Brian and Brook know the only place to test Reflex Strike, the boxing glove designed to sharpen your reflexes, is in the ring. They have some fun, but does it stand up to a pro?

Product tests reveal good and bad points. Brook was amazed by the augmented reality goggles, but he and Brian both thought it needed significant upgrades. The question is, is it ready for Marc’s investment?.

When fully applied to the outer and inner components of your device, Impervious creates a protective, waterproof coating that can be submerged for up to 30 minutes.

The electric trike with slick back wheels was easy to learn and Brook and Brian both mastered it and loved it. Now it comes down to the consumer’s perception of the product and price.

Brook and Brian get the briefing on how the Mind Rider bike helmet uses brainwave sensors to gather information about a rider and the environment around them.

The Creature Craft creator claims that his product can flip itself upright in any kind of water using 12 individual air chambers.

The Zero Hour flashlight/power source had people talking about its versatility and design, but what did they say about the price?

The iTraq usues cellular technology to track those who carry the iTraq device. The consumer test indicates interest and demand, but Brook and Brian had a few issues with the test.

The iGo-AIR team claims their product can refill a flat tire in just 10 to 15 seconds. Brook and Brian put it to the test!

Not only is the Easy Drone XL portable and easy to control, it also can deliver burritos!

These makers have created a carbon fiber toy airplane that you control via an app on their phone. Brook and Brian love the idea but it's got to prove durability.