Episode 1 - Threshold : Premier contact 1x1 Episode 2 - Threshold : Premier contact 1x2 Episode 3 - Threshold : Premier contact 1x3 Episode 4 - Threshold : Premier contact 1x4 Episode 5 - Threshold : Premier contact 1x5 Episode 6 - Threshold : Premier contact 1x6 Episode 7 - Threshold : Premier contact 1x7 Episode 8 - Threshold : Premier contact 1x8 Episode 9 - Threshold : Premier contact 1x9 Episode 10 - Threshold : Premier contact 1x10 Episode 11 - Threshold : Premier contact 1x11 Episode 12 - Threshold : Premier contact 1x12 Episode 13 - Threshold : Premier contact 1x13