Coby Rowe was the stoppage-time hero as Sutton clinched a 4-3 victory at the end of a dramatic seven-goal thriller against Port Vale.
Matt Gray's side recovered from 2-0 and 3-2 behind to extend their winning streak at home to five games right at the death at Gander Green Lane.
Michael Smith's header and Jamie Proctor's sweeping left-footed effort, within seven first-half minutes, put the visitors two goals to the good.
But the hosts got themselves back into the game 10 minutes before the break through Rob Milsom's deflected 22-yard effort.
And the U's levelled with just over 20 minutes to go as Ben Garrity nodded Isaac Olaofe's flick into his own net - with Vale boss Darrell Clarke's reaction earning him a booking.
Tom Conlon seemingly secured Vale a fifth straight league win with 12 minutes to go with his fine left-footed strike.
But Benning rose highest to head home the equaliser with three minutes to go.
And the drama was not over as Rowe rifled home for a famous comeback victory.