Time Trax - Season 1 Episode 12

Darien discovers some attacks that appear to be the work of a pro white movement from the future one of whose members is Sepp Dietrich, the man who killed an important man in the future whom Darien later caught but escaped with help from Sambi. And whom Sambi later sent into the past to kill the President but Darien stopped him and sent him back to the future or so he thinks. Later when he goes to the site of the attacks he learns that Dietrich is the leader.