diff --git a/LuaFunctions.cpp b/LuaFunctions.cpp
index eb5306d..e1fc472 100644
--- a/LuaFunctions.cpp
+++ b/LuaFunctions.cpp
@@ -706,6 +706,7 @@ ElunaRegister<Player> PlayerMethods[] =
     { "LeaveBattleground", &LuaPlayer::LeaveBattleground },                               // :LeaveBattleground([teleToEntryPoint]) - The player leaves the battleground
     // {"BindToInstance", &LuaPlayer::BindToInstance},                                  // :BindToInstance() - Binds the player to the current instance
     { "UnbindInstance", &LuaPlayer::UnbindInstance },                                     // :UnbindInstance(map, difficulty) - Unbinds the player from an instance
+    { "UnbindAllInstances", &LuaPlayer::UnbindAllInstances },                             // :UnbindAllInstances() - Unbinds the player from all instances
     { "RemoveFromBattlegroundRaid", &LuaPlayer::RemoveFromBattlegroundRaid },             // :RemoveFromBattlegroundRaid() - Removes the player from a battleground or battlefield raid
 #if (!defined(TBC) && !defined(CLASSIC))
     { "ResetAchievements", &LuaPlayer::ResetAchievements },                               // :ResetAchievements() - Resets player�s achievements
diff --git a/PlayerMethods.h b/PlayerMethods.h
index 97b8d65..33262d1 100644
--- a/PlayerMethods.h
+++ b/PlayerMethods.h
@@ -2174,11 +2174,19 @@ namespace LuaPlayer
         return 0;
     }
 
+    /**
+     * Unbinds the [Player] from his instances except the one he currently is in.
+     *
+     * Difficulty is not used on classic.
+     *
+     * @param uint32 map = true
+     * @param uint32 difficulty = 0
+     */
     int UnbindInstance(Eluna* /*E*/, lua_State* L, Player* player)
     {
         uint32 map = Eluna::CHECKVAL<uint32>(L, 2);
 #ifndef CLASSIC
-        uint32 difficulty = Eluna::CHECKVAL<uint32>(L, 3);
+        uint32 difficulty = Eluna::CHECKVAL<uint32>(L, 3, 0);
 
         if (difficulty < MAX_DIFFICULTY)
             player->UnbindInstance(map, (Difficulty)difficulty);
@@ -2188,6 +2196,36 @@ namespace LuaPlayer
         return 0;
     }
 
+    /**
+     * Unbinds the [Player] from his instances except the one he currently is in.
+     */
+    int UnbindAllInstances(Eluna* /*E*/, lua_State* L, Player* player)
+    {
+#ifdef CLASSIC
+        Player::BoundInstancesMap& binds = player->GetBoundInstances();
+        for (Player::BoundInstancesMap::iterator itr = binds.begin(); itr != binds.end();)
+        {
+            if (itr->first != player->GetMapId())
+                player->UnbindInstance(itr);
+            else
+                ++itr;
+        }
+#else
+        for (uint8 i = 0; i < MAX_DIFFICULTY; ++i)
+        {
+            Player::BoundInstancesMap& binds = player->GetBoundInstances(Difficulty(i));
+            for (Player::BoundInstancesMap::iterator itr = binds.begin(); itr != binds.end();)
+            {
+                if (itr->first != player->GetMapId())
+                    player->UnbindInstance(itr, Difficulty(i));
+                else
+                    ++itr;
+            }
+        }
+#endif
+        return 0;
+    }
+
     /**
      * Forces the [Player] to leave a [BattleGround]
      *