Grimsby overturned a two-goal half-time deficit to draw 2-2 with promotion rivals MK Dons at Blundell Park thanks to a second-half double from Jaze Kabia.
The visitors had looked in control after Callum Paterson's penalty and a fortuitous deflected effort, but the Mariners hit back through Kabia to claim a share of the spoils.
Visitors Seize Control Before The Break
MK Dons broke Grimsby's six-game clean sheet run in League Two from the penalty spot in the 21st minute. Callum Paterson converted from 12 yards after Sam Lavelle was deemed to have brought Aaron Collins down in the box.