A Dark Knight: Things That Go Boom - S4-E10
Continuity mistake: When Pyg is hit by the other inmate, he gets hit on his left side, but the bump and mark are on his right side.
A Dark Knight: Things That Go Boom - S4-E10
Continuity mistake: When Pyg slices the inmate's throat, the left side of his face is clean. But in the next shot of him, the left side is covered in blood splatter.
Answer: "The Merc" was a warehouse like store with aisles that sold mainly weapons, machetes, AK-47s, C-4, barrels of acid, etc. In s02e05, "Scarification", it was shown being raided by GCPD.
Bishop73