

Documentary
The Best Episodes of Cities of the Underworld Season 2
Every episode of Cities of the Underworld Season 2 ranked from best to worst. Discover the Best Episodes of Cities of the Underworld Season 2!

Documentary
The Best Episodes of Cities of the Underworld Season 2
Every episode of Cities of the Underworld Season 2 ranked from best to worst. Discover the Best Episodes of Cities of the Underworld Season 2!
Don Wildman travels to the farthest and deepest reaches of the globe, using cutting-edge technology to explore mysteries buried deep underground.
Seasons4
Season 2 Ratings Summary
"Underground Apocalypse" is the best rated episode of "Cities of the Underworld" season 2. It scored 7.1/10 based on 25 votes. Directed by Unknown and written by Unknown, it aired on 1/28/2008. This episode is rated 1.1 points higher than the second-best, "Vietnam".