Jordan Gibson scored in the sixth minute of stoppage time to snatch Carlisle a point in a 1-1 draw against Peterborough.
Ronnie Edwards opened the scoring 16 minutes from time and the win looked like going back to Cambridgeshire.
That was before Gibson's long-range effort deflected past Nicholas Bilokapic to steal a point for the hosts.
Within the first two minutes, Jonson Clarke-Harris blazed over from 12 yards as Posh made early inroads.
Clarke-Harris came closer with a whipped effort midway through the half, forcing goalkeeper Tomas Holy to palm away.
Ephron Mason-Clark called Holy back into action shortly afterwards with a low shot which the keeper tipped onto the foot of a post.
Gibson woke up the Brunton Park faithful with a rasping effort which was expertly blocked by Harrison Burrows.
Edwards broke the deadlock when he powered a header home from an inviting Joel Randall free-kick.
But Carlisle battled and found a late equaliser when Gibson's effort found the net at the death.