S13 E1: The UFO Conspiracy

S13 E2: Da Vinci's Forbidden Codes

S13 E3: The Alien Protocols

S13 E4: Earth's Black Holes

S13 E5: The Desert Codes

S13 E6: Area 52

S13 E7: Earth Station Egypt

S13 E8: Island of the Giants

S13 E9: The Taken

S13 E10: The Sentinels

S13 E11: Russia Declassified

S13 E12: They Came From the Sky

S13 E13: The Artificial Human

S13 E14: The Alien Phenomenon

S13 E15: Return to Mars