Al Ain and Esteghlal resumed their battle in the AFC Champions League Round of 16 with the Iranian outfit having secured a surprise 1-0 victory in the first leg.
A potentially nervy affair loomed for the Emiratis as they looked to turn that deficit around on home soil, but few could have predicted the emphatic nature of their victory.
Caio and Omar Abdulrahman were both on target twice as Al Ain secured a 6-2 aggregate victory to book their place in the quarter-finals.
The hosts were well on their way when Brazilian Caio netted in the 27th and 33rd minutes, but there was much more to come.
Al Ain showed their dominance in the second half as Abdulrahman scored twice and Lee Myung-Joo added another to put Al Ain 5-0 up on the hour mark.
Nassir Al Shamrani fired home a sixth in the 76th minute before Kevah Rezaei claimed a late consolation goal for the shell-shocked visitors.