Adventure Time Presents: Obsidian

Episode Summary & Review

Summary

When a powerful and dangerous dragon breaks free from its prison beneath the Glass Kingdom, young bookworm Glassboy sets out to find the legendary hero who first defeated the dragon centuries ago: Marceline the Vampire Queen. Marcy, now living in domestic bliss with Princess Bubblegum, is apprehensive about revisiting the Glass Kingdom. It’s a place that holds bad memories for her and Bubblegum. With the help of Glassboy and some new friends, Marceline and Princess Bubblegum will have to confront their rocky past as they face off against an ancient foe.

Our Take

This one leans hard into Marceline and Bubblegum’s relationship, and the emotional stuff mostly lands, even if the dragon plot itself feels like an afterthought. Some of the backstory songs drag a bit, but the payoff for longtime fans is genuinely satisfying. Worth watching if you’re invested in these two, less essential if you’re just here for adventure.