season list is properly populated in series details.

NzbDrone.Api/Seasons/SeasonModule.cs

@@ -0,0 +1,29 @@
+using System.Linq;
+using Nancy;
+using NzbDrone.Api.Extensions;
+using NzbDrone.Core.Tv;
+
+namespace NzbDrone.Api.Seasons
+{
+    public class SeasonModule : NzbDroneApiModule
+    {
+        private readonly ISeasonService _seasonService;
+
+        public SeasonModule(ISeasonService seasonService)
+            : base("/Season")
+        {
+            _seasonService = seasonService;
+
+            Get["/"] = x => GetSeasons();
+        }
+
+        private Response GetSeasons()
+        {
+            var seriesId = Request.Query.SeriesId;
+
+            return JsonExtensions.AsResponse(_seasonService.GetSeasonsBySeries(seriesId));
+        }
+    }
+
+
+}