Andy Bishop struck deep into stoppage time to complete a hat-trick and plunder three precious points for Wrexham in a topsy-turvy encounter.
The in-form striker gave the Reds a 24th minute lead but instead of building on their lead Wrexham were stunned by a quick-fire turnaround before half-time.
James Marwood (36) rifled in a low shot from outside the box before Adam Boyes netted his first goal from the club less than a minute later from an acute angle.
Bishop levelled from the penalty spot after 77 minutes and headed in the winner in the third and final minute of added time to take his tally to five goals in the last two games.
Boss Morrell was forced into one change from the side that overpowered Alfreton 3-1 in Saturday’s FA Cup win with Joslain Mayebi replacing tonsillitis victim Andy Coughlin in goal.
After an uneventful opening 20 minutes Joe Clarke tried to inject some life into proceedings - a side-step in full flow was followed by a good show of strength to win possession in front of the dug-out.
Minutes later, Wrexham scored. Dave Artell flicked on Neil Ashton’s free-kick from just inside the Reds half and Bishop showed his re-born predatory instinct to stab the ball low past Heed custodian Adam Bartlett.
The lead and the onset of some cohesion in Wrexham’s play did not last long. Mayebi looked perplexed as Marwood’s hopeful drive bobbled past him, the keeper’s line of sight perhaps partially obscured by those in front of him.
Cool heads were needed but it was the men resplendent in obscene green who possessed them as barely a minute had elapsed from the restart when Boyes drove a low shot into the net as Wrexham’s defence creaked.
Wingers Theo Bailey-Jones and Adrian Cieslewicz">Adrian Cieslewicz were introduced early in the second half as Morrell sought to inject some much-needed cut and thrust into his three-pronged strike-force.
But it was sure-footed defender Ashton who continued to pose a threat with his bursting runs on the overlap. He dribbled past two players before a late block stopped him in his tracks.
With 13 minutes left Wrexham were back on level terms. James Curtis used Artell as a ladder in an attempt to win an aerial duel, giving referee Jason Whiteley no option but to award a penalty.
Bishop stepped up and sent Bartlett the wrong way. The keeper was then booked for time-wasting as he blocked Cieslewicz’s attempts to retrieve the ball.
Wrexham forced several corners in the ensuing minutes before appearing to tail off late on as stray passes summed up their desperation to find a winner.
In added time Mark Carrington fired a deep pass into the box and Bishop rose above his marker to guide a header past Bartlett and spark scenes of jubilation.
Wrexham: Mayebi; Ashton, Artell, Wright, Carrington; Clarke, Keates, Harris; Ormerod (Cieslewicz, 62), Ogleby (Bailey-Jones, 62), Bishop.
Subs: Creighton, Tomassen, Hunt.
Referee: Jason Whitleley (Yorkshire)
Wrexham: Wright (dissent), Bailey-Jones (foul)