diff --git a/CHANGELOG.md b/CHANGELOG.md
index b9c8a07b..b6c90da1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -86,6 +86,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Classify HDHR endpoints as streaming endpoints
   - This allows these endpoints to be accessed through port `ETV_STREAMING_PORT` (default `8409`)
   - This only matters if you configured `ETV_UI_PORT` to be a different value, which makes UI endpoints inaccessible on the streaming port
+- Update Plex movie/other video plot ("summary") during library deep scan
 
 ## [25.2.0] - 2025-06-24
 ### Added
diff --git a/ErsatzTV.Core/Interfaces/Repositories/IMetadataRepository.cs b/ErsatzTV.Core/Interfaces/Repositories/IMetadataRepository.cs
index f7ec371f..fadfb849 100644
--- a/ErsatzTV.Core/Interfaces/Repositories/IMetadataRepository.cs
+++ b/ErsatzTV.Core/Interfaces/Repositories/IMetadataRepository.cs
@@ -36,6 +36,8 @@ public interface IMetadataRepository
     Task<Unit> MarkAsExternal(OtherVideoMetadata metadata);
     Task<Unit> SetContentRating(MovieMetadata metadata, string contentRating);
     Task<Unit> SetContentRating(OtherVideoMetadata metadata, string contentRating);
+    Task<Unit> SetPlot(MovieMetadata metadata, string plot);
+    Task<Unit> SetPlot(OtherVideoMetadata metadata, string plot);
 
     [SuppressMessage("Naming", "CA1720:Identifier contains type name")]
     Task<bool> RemoveGuid(MetadataGuid guid);
diff --git a/ErsatzTV.Infrastructure/Data/Repositories/MetadataRepository.cs b/ErsatzTV.Infrastructure/Data/Repositories/MetadataRepository.cs
index 8dbc9a6d..268a88fb 100644
--- a/ErsatzTV.Infrastructure/Data/Repositories/MetadataRepository.cs
+++ b/ErsatzTV.Infrastructure/Data/Repositories/MetadataRepository.cs
@@ -456,6 +456,21 @@ public class MetadataRepository : IMetadataRepository
             new { metadata.Id, ContentRating = contentRating }).ToUnit();
     }
 
+    public async Task<Unit> SetPlot(MovieMetadata metadata, string plot)
+    {
+        await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync();
+        return await dbContext.Connection.ExecuteAsync(
+            @"UPDATE MovieMetadata SET Plot = @Plot WHERE Id = @Id",
+            new { metadata.Id, Plot = plot }).ToUnit();    }
+
+    public async Task<Unit> SetPlot(OtherVideoMetadata metadata, string plot)
+    {
+        await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync();
+        return await dbContext.Connection.ExecuteAsync(
+            @"UPDATE OtherVideoMetadata SET Plot = @Plot WHERE Id = @Id",
+            new { metadata.Id, Plot = plot }).ToUnit();
+    }
+
     public async Task<bool> RemoveGuid(MetadataGuid guid)
     {
         await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync();
diff --git a/ErsatzTV.Scanner/Core/Plex/PlexMovieLibraryScanner.cs b/ErsatzTV.Scanner/Core/Plex/PlexMovieLibraryScanner.cs
index a9dcc049..3585c6a9 100644
--- a/ErsatzTV.Scanner/Core/Plex/PlexMovieLibraryScanner.cs
+++ b/ErsatzTV.Scanner/Core/Plex/PlexMovieLibraryScanner.cs
@@ -174,6 +174,13 @@ public class PlexMovieLibraryScanner :
             result.IsUpdated = true;
         }
 
+        if (existingMetadata.Plot != fullMetadata.Plot)
+        {
+            existingMetadata.Plot = fullMetadata.Plot;
+            await _metadataRepository.SetPlot(existingMetadata, fullMetadata.Plot);
+            result.IsUpdated = true;
+        }
+
         foreach (Genre genre in existingMetadata.Genres
                      .Filter(g => fullMetadata.Genres.All(g2 => g2.Name != g.Name))
                      .ToList())
diff --git a/ErsatzTV.Scanner/Core/Plex/PlexOtherVideoLibraryScanner.cs b/ErsatzTV.Scanner/Core/Plex/PlexOtherVideoLibraryScanner.cs
index 418d143f..07fc6c3f 100644
--- a/ErsatzTV.Scanner/Core/Plex/PlexOtherVideoLibraryScanner.cs
+++ b/ErsatzTV.Scanner/Core/Plex/PlexOtherVideoLibraryScanner.cs
@@ -177,6 +177,13 @@ public class PlexOtherVideoLibraryScanner :
             result.IsUpdated = true;
         }
 
+        if (existingMetadata.Plot != fullMetadata.Plot)
+        {
+            existingMetadata.Plot = fullMetadata.Plot;
+            await _metadataRepository.SetPlot(existingMetadata, fullMetadata.Plot);
+            result.IsUpdated = true;
+        }
+
         foreach (Genre genre in existingMetadata.Genres
                      .Filter(g => fullMetadata.Genres.All(g2 => g2.Name != g.Name))
                      .ToList())