The attack injured four officers, leaving one knocked out cold.
Two of the officers were rushed to a valley hospital.
The Maricopa County Sheriff's Office says an 18-year-old psych inmate attacked the four officers.
Sheriff Joe Arpaio says that the 18-year-old inmate never gave them problems before, but this morning he crossed into an area of the jail pod he was not supposed to be.
The detention officers ordered him back to his cell, but instead he started attacking the officers. A taser was used four times, but he pulled out eight probes and kept on fighting.
The inmate now faces charges for the assault.
"You never know what's going to happen in the jail system, as you can see in the video our guys tried to do the best they could," said Sheriff Joe Arpaio.
Three of the four officers were taken to the hospital. One officer, the one who was knocked unconscious has been identified as 44-year-old Scott Beatty.
Beatty remains in the neurological unit at a valley hospital with a brain bleed.