I'm trying to figure out when Pan did the switch into Henry's body. I'm wondering if it's another one of those things that took place in Star Trek II:The Wrath of Khan when Spock sees the doctor and then goes into the chamber to "save" the ship and the crew. I don't recall seeing Spock do anything with the doctor in that second movie when it first came out. However, in the 3rd movie we get Bones telling Kirk that Spock did have a short encounter with him -- and what we see in memory replay of that encounter is Spock doing the mind meld and saying "Remember". Am I the only one who can't figure out when/how the transference took place?