Bradley Wright-Phillips scored a last-gasp winner as Plymouth sank Swindon 3-2.
Argyle stunned Swindon in the first half, scoring two goals in the first 10 minutes through Reda Johnson's header and Wright-Phillips' tap-in.
However, with Plymouth pushing to add a third, Swindon pulled a goal back through David Prutton with a powerful shot from 25 yard.
Swindon drew level in the 74th minute, Michael Rose smashing in a low free-kick from 20 yards.
But the home side were dealt a blow when Prutton was sent off after bringing down Wright-Phillips, before Plymouth's Johnson was red-carded for his second yellow.
And Wright-Phillips popped up five minutes into stoppage time to head home Craig Noone's cross.