diff --git a/utility/merge_multiepisodes.py b/utility/merge_multiepisodes.py
index 72e458e..c8e6dc7 100644
--- a/utility/merge_multiepisodes.py
+++ b/utility/merge_multiepisodes.py
@@ -11,10 +11,21 @@ Notes:
 
     * Episode titles, summaries, and tags will be appended to the first episode of the group.
 
+    * Without re-numbering will keep the episode number of the first episode of each group.
+
+    * Re-numbering starts at the first group episode's number and increments by one. Skipping numbers is not supported.
+        * e.g. s01e01-e02, s01e03, s01e04, s01e05-e06 --> s01e01, s01e02, s01e03, s01e04
+        * e.g. s02e05-e06, s01e07-e08, s02e09-e10 --> s02e05, s02e06, s02e07
+        * e.g. s03e01-e02, s03e04, s03e07-e08 --> s03e01, s03e02, s03e03 (s03e03, s03e05, so3e06 skipped)
+
     * To revert the changes and split the episodes again, the show must be removed and re-added to Plex (aka Plex Dance).
 
 Usage:
-    python merge_multiepisodes.py --library "TV Shows" --show "SpongeBob SquarePants"
+    * Without renumbering episodes:
+        python merge_multiepisodes.py --library "TV Shows" --show "SpongeBob SquarePants"
+
+    * With renumbering episodes:
+        python merge_multiepisodes.py --library "TV Shows" --show "SpongeBob SquarePants" --renumber
 '''
 
 import argparse
@@ -33,45 +44,54 @@ PLEX_URL = os.getenv('PLEX_URL', PLEX_URL)
 PLEX_TOKEN = os.getenv('PLEX_TOKEN', PLEX_TOKEN)
 
 
-def group_episodes(plex, library, show):
-    groups = defaultdict(list)
-
+def group_episodes(plex, library, show, renumber):
     show = plex.library.section(library).get(show)
-    for episode in show.episodes():
-        groups[episode.locations[0]].append(episode)
 
-    for index, (first, *episodes) in enumerate(groups.values()):
-        if not episodes:
-            continue
+    for season in show.seasons():
+        groups = defaultdict(list)
+        startIndex = None
 
-        title = first.title + ' / '
-        titleSort = first.titleSort + ' / '
-        summary = first.summary + '\n\n'
-        writers = []
-        directors = []
+        for episode in season.episodes():
+            groups[episode.locations[0]].append(episode)
+            if startIndex is None:
+                startIndex = episode.index
 
-        for episode in episodes:
-            title += episode.title + ' / '
-            titleSort += episode.titleSort + ' / '
-            summary += episode.summary + '\n\n'
-            writers.extend([writer.tag for writer in episode.writers])
-            directors.extend([director.tag for director in episode.directors])
+        for index, (first, *episodes) in enumerate(groups.values(), start=startIndex):
+            title = first.title + ' / '
+            titleSort = first.titleSort + ' / '
+            summary = first.summary + '\n\n'
+            writers = []
+            directors = []
 
-        merge(first, episodes)
-        first.edit(**{
-            'title.value': title[:-3],
-            'title.locked': 1,
-            'titleSort.value': titleSort[:-3],
-            'titleSort.locked': 1,
-            'summary.value': summary[:-2],
-            'summary.locked': 1,
-            'originallyAvailableAt.locked': 1,
-            'contentRating.locked': 1,
-            'index.value': index + 1,
-            'index.locked': 1
-        })
-        first.addWriter(writers, locked=True)
-        first.addDirector(directors, locked=True)
+            for episode in episodes:
+                title += episode.title + ' / '
+                titleSort += episode.titleSort + ' / '
+                summary += episode.summary + '\n\n'
+                writers.extend([writer.tag for writer in episode.writers])
+                directors.extend([director.tag for director in episode.directors])
+
+            if episodes:
+                merge(first, episodes)
+
+            first.addWriter(writers, locked=True)
+            first.addDirector(directors, locked=True)
+
+            edits = {
+                'title.value': title[:-3],
+                'title.locked': 1,
+                'titleSort.value': titleSort[:-3],
+                'titleSort.locked': 1,
+                'summary.value': summary[:-2],
+                'summary.locked': 1,
+                'originallyAvailableAt.locked': 1,
+                'contentRating.locked': 1
+            }
+
+            if renumber:
+                edits['index.value'] = index
+                edits['index.locked'] = 1
+
+            first.edit(**edits)
 
 
 def merge(first, episodes):
@@ -83,6 +103,7 @@ if __name__ == '__main__':
     parser = argparse.ArgumentParser()
     parser.add_argument('--library', required=True)
     parser.add_argument('--show', required=True)
+    parser.add_argument('--renumber', action='store_true')
     opts = parser.parse_args()
 
     plex = PlexServer(PLEX_URL, PLEX_TOKEN)