Assembly Required

Tim Allen and Richard Karn ask the makers to create an exercise machine that's fully loaded with all the bells and whistles. But first, the makers have to build a working treadmill to get their heart rates up.

Tim Allen and Richard Karn challenge the Makers to put their best paw forward by creating the ultimate doghouse. But before they can unleash their perfect pooch palaces, they must first prove their K9 construction prowess by building a functioning doggy-door. Which maker will be crowned best-in-show while the rest are left barking up the wrong tree?

Tim Allen and Richard Karn challenge the maker's imaginations by having them build a do-it-all landscaping machine. But before they can tackle their yard work, they have to build a shock-absorbing food tray for a comfy recliner. Can the makers prove they have the skills to win or will they get mowed down by the competition?

Tim Allen and Richard Karn heat up the competition when they ask our Makers to create a Mobile BBQ Grill with all the fixins'. But before they can start cooking, they must first prove they can create fire by fabricating a brazing torch.

Tim Allen and Richard Karn put the maker's skills to the test when they have them create an all-season leaf blower that can also melt ice and snow. But before they can play with fire, they have to prove they can put one out by creating a class A fire extinguisher.