Artists will paint their most valuable canvas yet in the upcoming episode of Spike's "Ink Master" season 6.

In "Ink Master," TV Guide reports that the nine remaining contestants will find themselves pitting against each other in one of the most important challenges in the competition. With the stakes soaring high, they need to prove to the judges that they are worthy to be crowned the best tattooist in this side of the world; or else, they are going home.

Some artists will inevitably crumble under pressure, with one even raising suspicions from the rest of the gang. Apparently, this contestant's tricks will not be appreciated by everyone, least of all the members of her group. In the preview released by Spike, it appears that Katie McGowan's ideas may end up sabotaging her team's chances of winning the challenge. Will this also cost her a coveted spot in the finale?

Meanwhile, the judges are certainly keeping the tattooists on their toes, as they become harsher in their comments. Perhaps they want to make sure that only the most talented ones get to stay in the competition. When the contestants drawing skills are put to test, they will not mince words in telling them if their work is crap or going to the dogs.

As for that "most valuable canvas," Cartermatt reports that they will be working with cars. Apparently, the artists will be creating arts with expensive automobiles and they have to bring their A-game to impress the judges. It will be made doubly difficult for them, however, as they will once again work in groups.

Past challenges have proven that group tasks are a bane to their quest to be the one and only "Ink Master." Some artists just cannot work well together and this inevitably pulls down the rest of the team. Which unit will excel in a task as cool as designing cars? Which will end up short of expectations?

"Ink Master" airs Tuesdays at 10 p.m. EST on Spike.