The victim survived the beating and is asking the public for help to catch the guy who left him bruised and scarred.
The robbery happened Tuesday night at the Domino's Pizza at Bethany Home Road and 35th Avenue in Phoenix.
Police released surveillance photos and video of the attack, hoping someone will help them put the violent crook behind bars.
The crook in the surveillance video bashes the employee in the back of the head with a metal bar. The victim is manager Jody Thompson.
"Luckily it was just a bar, that was what I was looking for, if it was a gun or not, my heart was racing a million miles an hour," he said.
Thompson said the suspect entered the restaurant after 10 Tuesday night. One other employee was there at the time, he ran out of the restaurant and called police as Thompson came face to face with the robber.
"First thing he says "give me your money, give me your cash," I told him the safe was time delayed, he says you're lying, I bent down to do it and that is when he popped me in the head," said Thompson.
Thompson survived the blow which caused his head to swell and left a scar. He was treated at the hospital and released the same night.
"With all the adrenaline I didn't really feel it, I just felt a whack, but it didn't really hurt... it was like a quick pop, that's when I felt it, lucky I had my hat on it kinda cushioned some of it," he said.
It didn't knock him out? "No, I think he was kinda surprised he popped me, and I got back up and looked at him," said Thompson.
After the suspect couldn't get money out of the safe, Thompson offered to give him the money in the registers. The suspect dumped all the cash and coins into a bag and then ran out.
"Get rid of one person off the streets that can do this to someone else or another store harm," he said.
The suspect is described as a man in his mid 20's, about 5'10" tall with a thin build.
Anyone with information on the suspect is asked to call Silent Witness at 480-WITNESS.