If current server doesn't work please try other server below.

• S4.E1 ∙ The Wild West
• S4.E2 ∙ The Battle for the Black Swan
• S4.E3 ∙ Arctic War
• S4.E4 ∙ Hollywood
• S4.E5 ∙ The First Americans
• S4.E6 ∙ Venice's Lost Empire
• S4.E7 ∙ The Mississippi River
• S4.E8 ∙ Hurricane Apocalypse
• S4.E9 ∙ The Great Barrier Reef
• S4.E10 ∙ Sea of Secrets