frontend/js/reducers/show.js

@@ -51,7 +51,9 @@ export default (state = defaultState, action) =>
         });
 
         let seasonMap = new Map();
-        seasonNumbers.sort().forEach((n) => {
+        seasonNumbers
+          .sort((a, b) => a - b)
+          .forEach((n) => {
             let episodes = [];
             seasons[n]
               .sort((a, b) => a.episode - b.episode)