S3 E1: Aliens and the Old West

S3 E2: Aliens and Monsters

S3 E3: Aliens and Sacred Places

S3 E4: Aliens and Temples of Gold

S3 E5: Aliens and Mysterious Rituals

S3 E6: Aliens and Ancient Engineers

S3 E7: Aliens, Plagues and Epidemics

S3 E8: Aliens and Lost Worlds

S3 E9: Aliens and Deadly Weapons

S3 E10: Aliens and Evil Places

S3 E11: Aliens and the Founding Fathers

S3 E12: Aliens and Deadly Cults

S3 E13: Aliens and the Secret Code

S3 E14: Aliens and the Undead

S3 E15: Aliens, Gods and Heroes

S3 E16: Aliens and the Creation of Man