You can find the Stormwind Stockade dungeon within Stormwind City, Eastern Kingdoms.
The coordinates are (51.0,67.2)
1. Lord Overheat
/i Deals fire damage spells. Casts fireballs around the room.
2. Randolph Moloch
/i Vanishes then reappears. Deals physical damage attacks, stabs current target.
/i Slices target dealing physical damage. Enrages at 30% increasing his speed & damage done, nuke boss. Interrupt Maddening Call.