This week’s set is 10237 - Tower of Orthanc.
This massive 2013 set depicts Saruman's fortress and also includes Treebeard, Saruman, Gandalf, Wormtongue, a Mordor orc (why?) and an Uruk-Hai.

Bruce, this isn't entirely true. In the LOTR books it is very clear that Sauron sends a number of orcs to Isengard to help Saruman spawn his army of Uruk-Hai. In the movie adaption it is less clear, but two orcs report to Saruman, giving regards from their master (Sauron). Saruman replies that they "have work to do." Then a detachment of those orcs leaves Isengard with the Uruk-Hai in pursuit of the Fellowship. Hence, the Mordor Orc makes perfect sense in this set.Bruce N H wrote: My biggest "Huh?" moment is the inclusion of the Mordor orc. They are never at Orthanc
Bruce