Plex does support multi-episode files. If you use the correct episode naming / correct database then it'll work. If you're using TMDB as database then Plex will expect multi-episode numbering like this:
Code: Select all
SpongeBob SquarePants - S01E01-E03 - Help Wanted & Reef Blower & Tea at the Treedome
SpongeBob SquarePants - S01E04-E05 - Bubblestand & Ripped Pants
SpongeBob SquarePants - S01E06-E07 - Jellyfishing & Plankton
Please watch the Video Tutorial #5 to see how one might approach your specific use case: Please read [FAQ] How do I organize files for Plex? and [FAQ] Why can I not use TheTVDB and TheMovieDB interchangeably? if you have not done so already.