Plot Synopsis

Hosted and executive produced by Tim Allen and Richard Karn, ASSEMBLY REQUIRED spotlights the best and brightest makers from across America, as they compete head-to-head to create mind-blowing builds -- everything from a dual all-season ice melter/leaf blower and all-in-one riding comfort mower to a do-it-yourself jacuzzi and BBQ bicycle -- which not only pushes each builder beyond their limits but challenges their inner fixer and inventor to build it bigger, better and more powerful. Additionally, the duo will be joined by woodworking do-it-yourself YouTube star April Wilkerson who will act as the series' own resident expert.

Each week, ASSEMBLY REQUIRED features three makers who compete from their own home shops to create insane builds with their bare hands while both Allen and Karn pop in virtually to deliver colorful commentary and oversee their work across two challenge rounds. Wilkerson serves as Tim and Richard's go-to source on the 'how and why' of each build, breaking down the complexities and giving the audience a bird's eye view of what our challengers are up against. Round one consists of the "make-or-break challenge" where all three makers have 90 minutes to build an item of Allen and Karn's choosing while using the items specifically curated for them in their "mystery crates." Round one builds this season include a fire extinguisher, water fountain, treadmill and handheld vacuum to name a few. All three makers will test their final constructs for the guys with only two moving on to round two to compete in the "run-with-it challenge." Here they will have five full days to construct something that has never been created before by using the contents of another "mystery crate" as well as parts from their round one build. What the final two don't know is Wilkerson will throw a proverbial "wrench" into their plans with "April's Secret Challenge," covertly tricking up one of the parts, so it will require a surprise repair. This ensures they aren't just builders and inventors but also fixers. The final two builds will be shipped to Allen's workshop where he and Karn will personally test each creation based on three criteria -- quality, design and functionality. The winning maker takes home $5,000 in cash and the ultimate bragging rights.

In the series opener, "Bring the Heat," Tim and Richard 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. Can the makers bring the heat needed to melt Tim and Richard's hearts or will they be left out in the cold?
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On Tuesday, April 27, 2021 at 10pm ET/PT, History Channel premiered "Work It," the season finale of ASSEMBLY REQUIRED. Tim Allen and Richard Karn never know where or when they'll need their tools so they're tasking the makers with building them a mobile workbench. But before they can take their skills on the road, they have to build a heavy-duty flashlight. Can the makers prove they have the skills to build on-the-go or will they get left behind?