18 Rival Artists enter for $100k and the Ink Master title. It's their worst nightmare as they're forced to ink with their enemy.

Semi-nude models bring the heat and a game changing twist is revealed. Jacked pin ups make the critique a bloodbath & rivalries flare.

Josh ignites rivalries while two artists receive an advantage no one in the competition has ever had and their cutthroat strategy has tension soaring.

Vendettas have the artists at each others' throats. The skull pick gets personal and the pressure is on when the artists tattoo Nunez's specialty.

The artists must make incredible art by sand blasting glass while trying to survive working in teams. Rivalries explode when they tattoo head to head.

In one of the craziest challenges ever, the artists must ink 12 hour gluteus maximus tattoos. A medical emergency may cost one artist the competition.

The pressure is on when the artists take on Oliver's specialty - and it’s tripled when they have to work in teams.

The artists are taken out of their comfort zone when they must scrimshaw walrus penises. One artist totally loses their cool while another artist loses their shot at $100K.

Picky virgin canvases get inked and Jason's anxiety threatens to take him out. The artists battle head to head and Josh plays dirty, putting his opponent on the chopping block.

In the flash challenge, the artists use a different kind of ink to make art... blood. Then, they go head-to-head against guest judge Tommy Montoya while Emily goes over the edge.

Josh causes a controversy that could get him kicked out of the competition for good. The Artists tattoo amputees where their limbs once were.

The artists fight for an opportunity to ink NFL star DeAngelo Williams as he honors his mother who died of breast cancer. Head tattoos send one human canvas over the edge.

Artists go head to head tattooing the same portrait on two family members. Some family members are left with jacked tattoos as the portrait subject overlooks.

It's down to the wire as the artists battle for a top 4 spot - to survive they must impress 3 tattoo heavyweights criticizing their every move.

The final 3 artists reveal their 35 hour back pieces and the sparks fly when all 18 rival artists return to give the lowdown on whose rivalries still burn.