Pools had given themselves a commanding lead over League Two’s form side after Nicky Featherstone added to Luke Molyneux’s goal early in the second half.
But the Stags turned the game on its head with three goals in 11 minutes as Nigel Clough’s men claimed the points at a foggy One Call Stadium.
John-Joe O’Toole headed in from George Maris’ corner before Jordan Bowery equalised seven minutes later.
And the turnaround was complete within four minutes when Maris’ cross from the left evaded everyone and found the back of the net.
Substitute Gavan Holohan thought he had grabbed a late equaliser only for his goal to be ruled out by the officials much to the dismay of the Pools players.
And here is how Pools were rated on a frantic Boxing Day afternoon.
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1. Ben Killip - 6
Booked in the first half for time wasting. Made a good save from Bowery. Little he could do with the goals. Picture by FRANK REID Photo: Frank Reid
2. Jamie Sterry - 6
Dealt ok with McLaughlin and Law but struggled going forward. Went off injured early in the second half. (Credit: Will Matthews | MI News) Photo: Will Matthews
3. Timi Odusina - 6
Did well to thwart Oates early in the first half but was caught out for two of Mansfield’s goals. Picture by FRANK REID. Photo: Frank Reid
4. Gary Liddle - 6
Some towering clearances in the first half including one from the line to deny Bowery but allowed the Stags frontman to escape for the equaliser. Picture by FRANK REID. Photo: Frank Reid