Season 4 opens with a new crop of artists tattooing hundreds of canvases convention-style.
One artist snaps and intends to leave the competition, which features live poisonous scorpions, tarantulas and eyeballs.
Bikini-clad twins get inked by the remaining 10 artists all at once; an injury sends one artist to the emergency room.
Getting up close and awkward with naked canvases; New York Yankees pitcher CC Sabathia guest judges.
Tattooing superfans with 'X-Men' characters in the first ever color portrait challenge. Actor Hugh Jackman chooses the winner, with a sneak peek of 'X-Men: Days of Future Past.'
Forced to work in pairs; a canvas passes out and one artist loses his marbles; a drastic decision.
Canvases seek cover-ups of tattoos they got for exes. Then, the judges announce a "massacre," and two artists are sent home.
In the flash challenge, the team use gunpowder. Rob Zombie is this weeks guest judge with the artists competing against one another with demon designs.
The artists are challenged to make mouth grill for Brandon Rios, a pro boxer. A canvas leads to an argument. Jay goes ahead with his plan to take out Scott, resulting in a harsh critique.