The show is set in Huntsville, Alabama[1][2][3] (known as "Rocket City" for its historic contributions to the American space program), and features Travis Taylor, three of his relatives, and his best friend.
All five cast members are highly educated (Travis holds multiple Ph.D. degrees and his brother-in-law also holds a Ph.D.) but, when not working on technical matters, play the part of stereotypical "rednecks" and use their advanced knowledge to solve "real world" problems (such as creating a rocket that uses moonshine as fuel).
[4] It is broadcast on the National Geographic Channel, and will be shown in all regions of the United States.
A typical episode features the five main cast members and possibly the addition of an expert in the field related to the particular challenge of that show.
Examples of challenges include making a mechanical "ironman" suit, a submarine, a spy satellite, and a machine to fling a frozen watermelon to simulate an asteroid collision with the southern United States.