

Animation•
Kids•
Documentary•
The Best Episodes of Once Upon a Time... Planet Earth Season 1
Every episode of Once Upon a Time... Planet Earth Season 1 ranked from best to worst. Discover the Best Episodes of Once Upon a Time... Planet Earth Season 1!

Animation•
Kids•
Documentary•
The Best Episodes of Once Upon a Time... Planet Earth Season 1
Every episode of Once Upon a Time... Planet Earth Season 1 ranked from best to worst. Discover the Best Episodes of Once Upon a Time... Planet Earth Season 1!
Teenagers, the internationally-recognized characters of the series, will be the heroes of adventures in which they will play an active role. They will be a...
Seasons1
Season 1 Ratings Summary
"Planet guards" is the best rated episode of "Once Upon a Time... Planet Earth" season 1. It scored 6.2/10 based on 12 votes. Directed by Unknown and written by Unknown, it aired on 12/15/2008. This episode is rated 0.7 points higher than the second-best, "Episode 2".