Back in 2006 , Pluto says hi to everyone in the Planet group chat . Pluto wants to know why Saturn looks worried and Mars immediately tells Pluto that he's been demoted t a dwarf planet . Pluto is confused as to what Mars is saying . Earth tells him the 3 rules of being a planet and Pluto broke the 3rd rule . Pluto doesn't understand the last one and Saturn tells him he needs to get out of the Kuiper Belt . Mercury tells him that he's too small but Pluto tells him that he's small as well but at least Mercury followed all the rules . Neptune tries to cheer Pluto up by saying he might get his planet status back but Uranus says it's impossible . Venus tells him that he's not the only dwarf planet which makes Pluto feel slightly better .
- Comment Line (Not canon)
- Jupiter (Mentioned)
- Ceres (Mentioned)
- Haumea (Mentioned)
- Makemake (Mentioned)
- Eris (Mentioned) (Referred to as "Xena" in the title)
- This episode introduced all the planets
- Despite Jupiter isn't present , he is mentioned
- The title Pluto and Xena is a reference of a song called "Poor Pluto" and Xena (Eris) tries to cheer Pluto up .
- Xena is also the provisional name of Eris