Tattoo Highway follows artist Thomas Pendelton as he travels the country in a mobile tattoo parlor of his own design, a converted 1970s Silver Eagle Tour Bus. On the outside, it's a moving metal canvas of Thomas' art; on the inside, it's a fully functional tattoo parlor. Whether he's tattooing a Crown Dancer for an Apache Elder in New Mexico or a bat-winged heart on a mortician's chest in Sacramento, Thomas is on the road searching for the people and the stories that never made it to a tattoo shop.