In this episode, Apollomon dies. And so does Damemon. And Mikey's innocence. And Ewan's sanity. It doesn't tie up loose ends so much as it hacks them off entirely.
In this episode, despite all the victories in the world, Mikey realizes it's impossible for everyone to leave Underworld alive. Turns out Underworld isn't all that picky about who it takes.
In this episode, Ewan and Mikey have a swordfight where they try to pierce the rose on the other's chest. ZETTAI! UNMEI! MOKUSHIROKU!
In this episode, Gravimon ensures his immortality by embedding a key piece of his soul within his main enemy, a strategy which has never backfired at any point in literary history.
In this episode, Christopher is shocked when his blatant disregard for his allies and a false sense of strategic superiority is countered by Gravimon's blatant disregard for his allies and false sense of strategic superiority.