Question about a poker hand

[Terr]

@Busy_Scissors

Noob question if you don’t mind me asking - why are they showing their 2 cards (hole cards?) prior to the final 2 community cards being turned over? I thought that the betting that accompanies these two final cards was integral to the game, and then you would only reveal your hand right at the end?
Thanks - don’t really know the rules.

It’s an “all in” - one of the two players put all his money into the pot, there can be no more betting, so the cards are turned up.