Craig Foster

The artists test their texture skills in a sexy Flash Challenge, a difficult canvas leads to a second elimination, and tattoo veteran Tony Hundahl joins as a guest judge.

The artists create single-needle tattoos for inmates in their first Flash Challenge, and canvases seek cover-ups in the elimination challenge.

The artists tackle tattooing over scarred skin in the Flash Challenge, a canvas asks for a Day of the Dead portrait of Tatu Baby, and artist Chuey Quintanar is a guest judge.

The artists must assemble their own tattoo machines before tattooing bar codes onto their canvases, and tattoo machine innovator Seth Ciferri joins as a guest judge.

The artists team up to create customized grills for lowrider cars, canvases sit for gory tattoos, and NFL star Chris Johnson joins the panel as a guest judge.

The artists honor military veterans by engraving dog tags on the deck of an aircraft carrier, canvases get complex tattoos on their heads, and Twig Sparks is a guest judge.