DAYLE Southwell scored within 90 seconds of coming on the pitch to send Grimsby Town into the third round of the FA Trophy this afternoon.
The young striker entered the fray as an 85th minute substitute and struck the decisive blow moments later.
Earlier, Andy Cook's seventh minute header, from Paddy McLaughlin's fine corner, separated the sides at half-time.
However, Keanu Marsh-Brown equalised for the Bees 16 minutes from time, and extra-time loomed until Southwell struck with a fine finish.
Jake Hyde then struck the Town post deep into injury-time as the Mariners held on.
See below for a timeline of the action…
7 mins: GOAL for Town! The Mariners start brightly and, from their third corner, Andy Cook nods home Paddy McLaughlin's fine set-piece from the right.
9 mins: It's Cook again, firing into the side-netting from 20 yards.
11 mins: Should be 2-0 to the visitors as Cook attacks yet another corner, but the forward can only plant his header wide this time.
16 mins: First half-chance for the Bees as Anthony Acheampong dives to head a free-kick wide.
20 mins: The hosts respond to Town's strong opening with plenty of possession in the middle of the park.
27 mins: Lovely build-up play from the hosts as Mark Byrne plays a neat one-two before firing just wide from 25 yards.
28 mins: The Bees register their first shot on target as Kieron Cadogan tests James McKeown from distance.
31 mins: Decent break from Town as Paul Bignot gets away down the right and squares the ball, but Acheampong clears the danger.
32 mins: Cook nods another effort on target from a deep right-wing cross into the Barnet box.
35 mins: McKeown does well to parry Keanu Marsh-Brown's cross away.
40 mins: Excellent clearance, away for a corner, by Clayton McDonald to cut out Marsh-Brown's cross from the right.
44 mins: Luisma Villa's superb free-kick cross-shot, from 40 yards, forces McKeown to claw the ball away from the bottom corner. Marsh-Brown then slices the return cross onto the roof of the stopper's goal.
45 mins: Joe Colbeck smashes a shot over, and wide, from 30 yards to end the half.
45+1 mins: HALF-TIME
47 mins: Colbeck fires a free-kick just wide of the post from the best part of 30 yards.
52 mins: Two long-range efforts in succession fly past McKeown's goal – with Byrne going closest with the second.
55 mins: Barnet well on top in search of an equaliser as Jon Nurse tests McKeown with a powerful low drive.
57 mins: The pressure intensifies when Marsh-Brown plays a one-two and curls a superb effort on target from 25 yards – but McKeown dives full length to his left to keep it out with a stunning stop.
64 mins: Paddy McLaughlin booked for a cynical foul on Marsh-Brown.
67 mins: Great chance for the Bees to draw level, but Cadogan fires wide from 15 yards after controlling an excellent ball over the top.
68 mins: Barnet sub – Jake Hyde for Villa.
69 mins: Hosts' free-kick hooked wide by Andy Yiadom.
71 mins: Stinging drive from Alex Rodman is deflected wide for a Town corner, which Colbeck curls straight out of play beyond the far post.
73 mins: Cadogan booked for a needless foul in midfield.
74 mins: Goal for Barnet. Marsh-Brown chases a ball into the inside left channel – outmuscling and outpacing Bignot before firing past McKeown from a tight angle. 1-1.
77 mins: Hyde turns well on the edge of the box and forces McKeown into a save.
82 mins: Rodman lashes a shot over the home crossbar from outside the penalty area.
83 mins: Town subs – Dayle Southwell for McLaughlin, Winfarrah for Rodman. Barnet sub – Mauro Vilhete for Cadogan.
85 mins: GOAL for Town! Within 90 seconds of coming on, Southwell breaks the offside trap and fires past Graham Stack clinically to restore the Mariners' advantage.
87 mins: Barnet miss another great chance as Hyde's header is brilliantly stopped by McKeown before the follow-up is blazed over.
88 mins: Barnet sub – Luke Gambin replaces Marsh-Brown.
90+1 mins: Colbeck slashes a shot wide of the near post as Town go for the kill.
90+2 mins: Hyde turns superbly in the box and plants a shot onto the inside of the far post with McKeown beaten.
90+3 mins: FULL-TIME
