Reds fight back to earn a point in this bottom-of-the-table clash.
In a game that Barnsley dominated for large spells, they had to be thankful for a late Aapo Halme strike which helped them to a share of the spoils in a high-energy encounter.
The Reds bossed most of the first half, with Conor Chaplin and then Cauley Woodrow going close inside the opening exchange. The former's header was tipped over the bar and then the latter's effort from a Marcel Ritzmaier corner fizzed into the side-netting.
Ritzmaier was in impressive form and he played a great ball inside to the on-rushing Jacob Brown on 10 minutes, a first time strike from the forward was brilliantly parried behind by Luton 'keeper Simon Sluga.
But as ever with this Reds side, they were made to pay with the opponents' first real attack of note, as on 15 minutes Luke Berry crashed in a rebound following an earlier effort from Elliot Lee striking the post.
Alex Mowatt was cleaned out just outside the box by Sluga a minute or so later, but the referee only issued a yellow card.
Further chances for Woodrow and Chaplin came and went, as the Reds kept knocking on the door before half time.
HALF TIME: Luton 1-0 Reds
The second half was a different affair for the opening half-hour as Barnsley struggled to find the same joy against a more adventurous Luton side.
It took a few substitutions to change the direction of the game, with Elliot Simoes, Callum Styles, Patrick Schmidt and Halme (most pertinently) making an impact from the bench.
After yet another Ritzmaier corner wasn't cleared, the big Finn smashed home from a couple of yards out with his first touch of the game.
Schmidt flashed a header so close soon after, but the game swung end to end as we entered stoppage time.
Reds' stopper Jack Walton pulled off a heroic save one-on-one as Harry Cornick sped through on the counter, before Styles got to the byline and saw a cross miss everyone inside the six yard box despite bodies stretching everywhere.
Not the result the Reds were after, but it could be a vital point with four games remaining in the battle for survival.
FULL TIME: Luton 1-1 Reds
Walton, Ludewig, Sollbauer, Andersen, J.Williams (Halme), Ritzmaier, Mowatt, Bähre (Simoes), Brown, Chaplin (Styles), Woodrow (Schmidt).
Unused: Collins, Oduor, B.Williams, Wolfe, Thomas.