is bleach episode 212 filler?

Urahara and Tessai confront Lieutenant Sousuke Aizen and his two accomplices. As Gin Ichimaru jokingly says that they've been caught, Aizen calmly greets the two senior Shinigami and orders Kaname Tōsen to not do anything.

An injured Captain Shinji Hirako walks up to Urahara and asks why he's here, whilst scolding him simultaneously. Urahara comments on his mask, to which Shinji replies solemnly, and turns to look sadly at his fallen lieutenant, Hiyori Sarugaki.

He then faces Aizen and asks what he's doing there; he is told that the Fifth Division lieutenant merely stopped by the scene and found the investigation team in their current state, so he tried to heal them.