Immortal Harry survived WW3 and saved the captains of each ‘era’ of Star Trek at least once during death defying events. And something about having codewords specifically for his involvement to keep it hidden. (That last bit may be a different fic). I hadn’t even thought about this one in over a decade so that’s about all I remember. Was feeling a nostalgia wave after rereading Rorschach’s Blot.