In the Final Space episode (Season 2, Episode 3), the crew of the Crimson Light journeys to the planet Serepentis to retrieve the second Dimensional Key. The story centers on the tragic homecoming of Ash Graven , who must confront the "god" that devastated her life: an eldritch serpent named Werthrent . The Quest for the Dimensional Key
: Nightfall hints that Ash’s devastating experience may unlock a greater potential for her powers later on.
: The creature’s death causes the rings around Serepentis to vanish, revealing they were actually part of its body.
While the main team fights for survival, a lighter subplot involves H.U.E. hosting a bachelor party for a groom who is an unexpected visitor. The party ends in accidental disaster when Fox accidentally pushes the groom out of the ship mid-flight, resulting in his death just before his wedding. Key Outcomes
: Clarence accidentally swallows the recovered Dimensional Key, requiring a "retreat" to the bathroom to retrieve it.
Returning home is a harrowing experience for Ash, who hopes to rescue her sister, , from Werthrent's grasp.
: This loss solidifies Ash's bond with Little Cato , who stays by her side during the escape. B-Plot: H.U.E.’s Bachelor Party
: Ash eventually finds Harp, but she is horrified to discover her sister has been reduced to a mindless, zombie-like thrall. Realizing Harp is "too far gone" to be saved, Ash is forced to leave her behind as the pocket dimension collapses following the key's removal.