diff --git a/frontend_tests/node_tests/unread.js b/frontend_tests/node_tests/unread.js
index b092d88e3a..c9faab5651 100644
--- a/frontend_tests/node_tests/unread.js
+++ b/frontend_tests/node_tests/unread.js
@@ -86,6 +86,9 @@ var zero_counts = {
     var msg_ids = unread.get_msg_ids_for_topic(stream_id, 'LuNcH');
     assert.deepEqual(msg_ids, []);
 
+    msg_ids = unread.get_msg_ids_for_stream(stream_id);
+    assert.deepEqual(msg_ids, []);
+
     unread.process_loaded_messages([message, other_message]);
 
     assert.deepEqual(unread.get_unread_message_ids([15, 16]), [15, 16]);
@@ -223,12 +226,14 @@ stream_data.get_stream_id = function () {
     assert.equal(counts.stream_count.get(stream_id), 1);
     assert.equal(counts.home_unread_messages, 1);
     assert.equal(unread.num_unread_for_stream(stream_id), 1);
+    assert.deepEqual(unread.get_msg_ids_for_stream(stream_id), [message.id]);
 
     muting.add_muted_topic('social', 'test_muting');
     counts = unread.get_counts();
     assert.equal(counts.stream_count.get(stream_id), 0);
     assert.equal(counts.home_unread_messages, 0);
     assert.equal(unread.num_unread_for_stream(stream_id), 0);
+    assert.deepEqual(unread.get_msg_ids_for_stream(stream_id), []);
 
     assert.equal(unread.num_unread_for_stream(unknown_stream_id), 0);
 }());
@@ -239,6 +244,13 @@ stream_data.get_stream_id = function () {
     unread.declare_bankruptcy();
 
     var stream_id = 301;
+
+    stream_data.get_sub_by_id = function (arg) {
+        if (arg === stream_id) {
+            return {name: 'Some Stream'};
+        }
+    };
+
     var count = unread.num_unread_for_topic(stream_id, 'lunch');
     assert.equal(count, 0);
 
@@ -264,6 +276,9 @@ stream_data.get_stream_id = function () {
     var msg_ids = unread.get_msg_ids_for_topic(stream_id, 'LuNcH');
     assert.deepEqual(msg_ids, _.range(1, 501));
 
+    msg_ids = unread.get_msg_ids_for_stream(stream_id);
+    assert.deepEqual(msg_ids, _.range(1, 501));
+
     for (i = 0; i < num_msgs; i += 1) {
         message.id = i+1;
         unread.mark_as_read(message.id);
@@ -274,6 +289,9 @@ stream_data.get_stream_id = function () {
 
     msg_ids = unread.get_msg_ids_for_topic(stream_id, 'LuNcH');
     assert.deepEqual(msg_ids, []);
+
+    msg_ids = unread.get_msg_ids_for_stream(stream_id);
+    assert.deepEqual(msg_ids, []);
 }());
 
 
@@ -534,7 +552,10 @@ stream_data.get_stream_id = function () {
     unread.declare_bankruptcy();
 
     const stream_id = 999;
-    const msg_ids = unread.get_msg_ids_for_topic(stream_id, 'LuNcH');
+    var msg_ids = unread.get_msg_ids_for_topic(stream_id, 'LuNcH');
+    assert.deepEqual(msg_ids, []);
+
+    msg_ids = unread.get_msg_ids_for_stream(stream_id);
     assert.deepEqual(msg_ids, []);
 }());
 
diff --git a/static/js/unread.js b/static/js/unread.js
index 2f9be7ce4d..395acc733b 100644
--- a/static/js/unread.js
+++ b/static/js/unread.js
@@ -309,6 +309,26 @@ exports.unread_topic_counter = (function () {
         return topic_bucket.count();
     };
 
+    self.get_msg_ids_for_stream = function (stream_id) {
+        var per_stream_bucketer = bucketer.get_bucket(stream_id);
+
+        if (!per_stream_bucketer) {
+            return [];
+        }
+
+        var topic_lists = [];
+        per_stream_bucketer.each(function (msgs, topic) {
+            var sub = stream_data.get_sub_by_id(stream_id);
+            if (sub && !muting.is_topic_muted(sub.name, topic)) {
+                topic_lists.push(msgs.members());
+            }
+        });
+
+        var ids = [].concat.apply([], topic_lists);
+
+        return util.sorted_ids(ids);
+    };
+
     self.get_msg_ids_for_topic = function (stream_id, topic) {
         var per_stream_bucketer = bucketer.get_bucket(stream_id);
         if (!per_stream_bucketer) {
@@ -469,6 +489,10 @@ exports.num_unread_for_person = function (user_ids_string) {
     return exports.unread_pm_counter.num_unread(user_ids_string);
 };
 
+exports.get_msg_ids_for_stream = function (stream_id) {
+    return exports.unread_topic_counter.get_msg_ids_for_stream(stream_id);
+};
+
 exports.get_msg_ids_for_topic = function (stream_id, subject) {
     return exports.unread_topic_counter.get_msg_ids_for_topic(stream_id, subject);
 };