Complex sentence: The fifth episode of the season is the series' 200th episode and the episode is called "Fan Fiction" and will be written by Robbie Thompson and is set to be a "musical-ish" episode.
Split into simpler sentences: The fifth episode of the season is the series' 200th episode and is called "Fan Fiction". This episode will be written by Robbie Thompson and is set to be a "musical-ish" episode.