The Fierce Earth special team take on one of the most feared forces on the planet - the Volcano. Dougal explores the secret lava tubes of Etna and climbs Stromboli for a face-to-face encounter with an erupting volcano. Meanwhile, Leo finds evidence of a volcano where you'd least expect it.

Encoded with permission for digital streaming by Infobase on May 23, 2014. Learn360 is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

Introduction: Volcanoes: Fierce Earth (Series 1) (1:29) -- Volcanoes (2:13) -- Volcanic Eruptions (3:10) -- Lava Tubes (2:10) -- Volcano History (1:39) -- Local Residents (3:37) -- Edinburgh Volcanoes (3:40) -- Stromboli (5:01) -- Peak of Stromboli (3:12) -- Survival Guide (1:21) -- Credits: Volcanoes: Fierce Earth (Series 1) (0:28).