Taking the NL champion Cardinals the distance in the NLDS last season and being right in the mix of contention this season have spared the Pirates from such statements like "the following video sums up the last 21 seasons of Pirates baseball." So, good for them for escaping that type of snark.
Still ... this is definitely NSFW (kidding!), especially in Pittsburgh.
The blow-by-blow account: Chris Stewart drew a walk, which would have given the Pirates a bases loaded situation with just one out and only one spot separating them from the top of the order in a one-run game. After said walk, however, Travis Snider was way too far off second and was picked off. While he was being tagged out, Gaby Sanchez ventured too far off third base -- but not nearly close enough to home plate to avoid a sure out -- and was also nailed. So that's a walk/double-play to end the inning after what looked like a big threat.
The Giants would take a one-run lead next inning and end up winning by two.