This category contains all files from the TOS episode "Errand of Mercy" (1x27).

Previous episode:
"The Devil in the Dark"
Files for TOS Next episode:
"The City on the Edge of Forever"


This category has only the following subcategory.

Media in category "Memory Alpha files by production (TOS: Errand of Mercy)"

The following 8 files are in this category, out of 8 total.