The pre-match battle cry for this test outside the November test window demanded one last surge.
The Springboks dug deep and summoned levels of courage and commitment rarely seen, but they failed to sustain the stirring comeback that brought them excruciatingly close to an improbable win.
The defeat means two defeats from four tests in Europe and may well seal the fate of coach Allister Coetzee.
But he would have been proud of the effort his team made when 21-3 down.
Tries by new wing Warrick Gelant, flyhalf Handre Pollard and centre Jesse Kriel helped the visitors into the lead after 55 minutes but ultimately their sins from earlier in the match caught up with them.It was a remarkable comeback when it looked like they might drop their bundle. The toil of the forwards was key. They got initial traction in the scrum which was perhaps to be expected and though they did not profit from that advantage initially, the slow poison gradually took effect elsewhere.
For large swathes in the middle of this match the Bok forwards dominated but they were not as ruthless in applying the finishing touches as they were a week ago.
Hooker Malcolm Marx was a colossus, flank Pieter-Steph du Toit took a while to fire up his diesel engine, but when he did he kept purring. New Bok flank Dan du Preez's performance at No8 belied his tender years, Lood de Jager stood tall in the second row and Steven Kitshoff's star continues to soar.
Off the bench, Bongi Mbonambi was a bundle of energy when he was unleashed and Oupa Mohoje wasn't far behind as half-time replacement for Eben Etzebeth.
To play to such heights required rapid transformation. They were barely recognisable. In the opening quarter, the Springboks were ponderous, lethargic and looked bereft of plan and idea.
In some basic elements of the game they continue to be feeble. They treat the aerial rugby ball as if it was bathed in anthrax.
Captain Etzebeth left the field dazed at half time and it was perhaps symptomatic of the Springbok performance up to that point. They were stunned in the opening eight minutes as Wales breathed fire. The brimstone also rained down as the hosts lay in the boot early here.
They profited richly from applying the boot, not just as tactical means to squeeze an often-exposed South African sore, but also as attacking probe by which to poke holes in the Bok defence.
Flyhalf Dan Biggar's inch-perfect cross-kick to wing Scott Williams was an act of training-ground exhibitionism...