Angus Bell scored the winning try six minutes after the final hooter as Australia overturned a 14-point halftime deficit to beat Argentina 28-24 in a Rugby Championship thriller in Townsville on Saturday.
The Pumas, who beat the All Blacks on home soil for the first time in their last outing, led 21-7 at the break after stunning their hosts with tries from Bautista Delguy and Mateo Carreras, along with three penalties from Santi Carreras.
The Wallabies hit back to level the score with a brace of tries from centre Joseph Suaalii, but Pumas fullback Juan Cruz Mallia edged the visitors ahead with a penalty a minute from time.
Australia turned down three chances to even up the score again from the kicking tee and got their reward when replacement prop Bell wrestled his way over the line from close range.