Wednesday and Huddersfield fought out an incredible 4-4 draw at Hillsborough on Saturday.
The Terriers fired an early brace from Jordan Rhodes - who would later bag another double and complete a&nbsp;four-goal haul&nbsp;- before the Owls hit back with two of their own, with skipper Rob Jones and Reda Johnson on target.
Wednesday then completed a remarkable turnaround as second half strikes from Ben Marshall and Chris O'Grady appeared to have sealed victory.
But Rhodes scored two late goals to round off an amazing afternoon in S6.
All the early pressure came from Huddersfield and leading scorer Rhodes had an early chance to give the visitors the perfect start but headed over the crossbar following good work down the left by Lee Novak.
But Rhodes then hit the Owls with a double whammy of two goals in three minutes that sparked an amazing burst of first half action.
First, on 13 minutes, Gary Roberts cut inside from the left channel and delivered an accurate cross into the danger zone that this time was duly converted by Rhodes.
Three minutes later the same two players linked up in a similar fashion with the same end product, giving Wednesday the proverbial mountain to climb.
And climb it they did.
The warning signs were there for the Terriers when Johnson's header in the box lined up O'Grady but the striker just failed to get a decent connection on the turn.
Then, remarkably, Wednesday hit Huddersfield with a double blow to turn the game on its head.
On 27 minutes, Marshall floated a measured cross to the back post where Jones was on hand to head across Ian Bennett and into the back of the net to halve the deficit.
The, two minutes later, with Wednesday turning the screw and moments after the Owls had a penalty appeal for handball turned down, the home side struck again.
Bennett did well to save an O'Grady snapshot, Sanchez Watt's shot was deflected on to the crossbar, and Johnson drilled a low shot home when the ball came back into the area from David Prutton.
Wednesday were buoyed - so too were the home contingent in a crowd of over 28,000 - and O'Grady smashed into the side netting just before the interval to almost send the atmosphere into overdrive.
Both sides - and indeed both sets of supporters - needed to draw breath at half time following a frantic opening 45 that swung one way and then the other in equal measures.
It would have taken a stunning second period to match what unfolded in the first but the pace stayed the same.
Megson introduced Ryan Lowe at the break for Watt and the Owls maintained the energy and drive that pegged the Terriers back before the whistle.
And Megson's men burst into the lead just past the hour.
Marsall took possession down the left wing and beat his man inside before calmly placing a slide rule shot beyond Bennett to hand the Owls the advantage.
Marshall then hit a low shot narrowly wide as Wednesday continued to press and O'Grady's looped header in front of the Kop on 73 minutes appeared to put the game out of sight.
But Huddersfield struck again on 79 minutes to set up a grandstand finish when Rhodes completed his treble with a powerful drive across Stephen Bywater.
The Owls responded with Lowe forcing a fine save from Bennett and Jose Semedo went agonisingly close following the rebound.
But Huddersfield pushed forward in pursuit of an equaliser and snatched the leveller with almost the last kick of the game when Rhodes stabbed past Bywater with a crisp drive to conclude the most incredible contest of the League 1 season so far.
Owls: Bywater, Tavernier, Jones, Batth, R Johnson, Marshall (Bennett 90), Semedo, Lines, Prutton, O'Grady, Watt (Lowe 46)
Unused substitutes: O'Donnell, J Johnson, Morrison
Huddersfield: Bennett, Hunt, Naysmith, Bruce, Clarke, Miller, Gobern, Roberts, Ward (McDermott 71), Novak (Parkin 83), Rhodes
Unused substitutes: Colgan, Woods, Arfield