"Synchrony" is the nineteenth episode of the fourth season of The X-Files. Mulder and Scully investigate a murder for which the suspect presents an incredible alibi — that the death was foretold by an old man able to see into the future. Text taken from the Synchrony summary http://en.wikipedia.org/wiki/List_of_The_X-Files_episodes#Season_4:_1996-1997 here.