My understanding is that "Free For All," "Dance of the Dead," and "Checkmate" were all written as possible second episodes of the show, so they should all occur early in the run.
I ultimately decided to put "Free For All" before the others due to a few small things:
- Number 6 is startled when he sees Number 2 appear on his television in "Free For All," pointing to him having only just arrived in the Village. In "Dance of the Dead," he's not only unsurprised by seeing Number 2 on the television in his cottage, he addresses it first, pointing to Number 6 knowing about it already.
- Number 6 says, “The maids come, and they go” and “I’m new here!” to his new maid in "Dance of the Dead," which would make more sense after his experience with Number 58 in “Free For All.”
- And lastly, Number 2’s line “We’re democratic… in some ways” in "Dance of the Dead" also has more bite coming after the fake election of “Free For All.”
In addition, Patrick McGoohan's seven essential episodes, in his preferred order, were:
1) “Arrival”
2) “Free For All”
3) “Dance of the Dead”
4) “Checkmate”
5) “The Chimes of Big Ben”
6) “Once Upon a Time”
7) “Fall Out”
So I used those, in that order, as the starting point for my chronology.