Episode 20 : Ouroboros - Part 2 Episode 19 : Ouroboros - Part 1 Episode 18 : Behind Enemy Lines Episode 17 : On the Brink Episode 16 : The Ascent - Part 2 Episode 15 : The Ascent - Part 1 Episode 14 : The Mirror Universe Episode 13 : A Tribble Called Bridule Episode 12 : The Last Flight of the Protostar - Part 2 Episode 11 : The Last Flight of the Protostar - Part 1 Episode 10 : The Time Devouring Scavengers - Part 2 Episode 9 : The Time Devouring Scavengers - Part 1 Episode 8 : Veritas Episode 7 : The Race Episode 6 : Imposter Syndrome Episode 5 : The Mystery Spiral Episode 4 : Temporal Mechanics 101 Episode 3 : Who Saves the Saviors Episode 2 : Into the Breach Part 2 Episode 1 : Into the Breach Part 1