Sounds like it was a corker of a match:

Twice Phil Davies, the director of rugby, saw his side fall 21 points
behind, at 24-3 in the first half and 31-10 early in the second. Yet at
the end, instead of settling for what would, in itself, have been
much-heralded 34-34 draw, the Scarlets went for the kill and achieved
it when Nathan Thomas, their replacement No 8, crashed over as the
clock wound down.