If you are a binge-watcher, you could technically skip it and read a summary. But you’d be missing the charm of seeing Inosuke try to wrestle a Hashira, or Zenitsu literally crying his way through a marathon. The humor and heart are intact.

For the uninitiated, this release (often labeled as the fourth season or a feature-length premiere) has caused a little confusion. Is it a movie? A season premiere? A filler episode? The answer is more interesting than you might think.

: Users with the Crunchyroll extension on Prime Video can stream the episodes directly through the Amazon interface. What is "To the Hashira Training"?