S52 E1: What Are UFOs?

S52 E2: Extreme Airport Engineering

S52 E3: Dino Birds

S52 E4: Egypt's Tombs of Amun

S52 E5: Pompeii's Secret Underworld

S52 E6: Baltimore Bridge Collapse

S52 E7: Revolutionary War Weapons

S52 E8: Secrets of the Forest

S52 E9: Critical Condition: Health In Black America

S52 E10: Ultimate Crash Test: Countdown

S52 E11: Ultimate Crash Test: Impact