Customer service gets put to the test when Randy Vollink and Mark Longenecker are confronted by their unhappy canvases.

Jesse Smith and Clint Cummings return to face unhappy canvases and their bitter significant others.

A past human canvas returns to let Lydia Bruno know that he hasn't found an artist willing to fix her overworked tarantula tattoo. Lalo returns to redeem his mistakes on an unhappy veteran canvas with a messed up flag.

Things get rough when Gentle Jay returns to the shop to face three canvases unhappy with their tattoos.

St. Marq and Ty'Esha Reels return to the shop to fix their unhappy canvases' tattoos.

Duffy Fortner comes back and gets help from former Ink Master Kruseman; rivals Cris Element and Angel return.

Emily Elegado has to swallow her pride when she returns to redeem not one, but three unhappy canvases.

Sarah Miller returns to call out Steve Teffet; Miami Burgess calls out Big Ceeze for the tattoo that sent him home.

After their canvas tapped out, Big Ceeze, Chris Blinston, Dave Clark, and Katie McGowan try to prove they deserve a second chance.

Unhappy canvases bring loved ones to help face artists Ashley B. and Ally Lee in the Ink Master shop.

James Vaughn returns to redeem one of the most infamous pin-up mistakes; Kyle Dunbar and Sebastian Murphy try to keep their cool when faced with unhappy canvases.

Kito is faced with not one, but three unhappy canvases, including one of the show's most infamous; Kito must keep his cool or lose his shot at redemption.