diff --git a/src/services/tt-rss/gui/formeditaccount.cpp b/src/services/tt-rss/gui/formeditaccount.cpp
index 43068321c..57fbfed10 100755
--- a/src/services/tt-rss/gui/formeditaccount.cpp
+++ b/src/services/tt-rss/gui/formeditaccount.cpp
@@ -148,7 +148,7 @@ void FormEditAccount::onClickedOk() {
   m_editableRoot->network()->setUrl(m_ui->m_txtUrl->lineEdit()->text());
   m_editableRoot->network()->setUsername(m_ui->m_txtUsername->lineEdit()->text());
   m_editableRoot->network()->setPassword(m_ui->m_txtPassword->lineEdit()->text());
-  m_editableRoot->saveToDatabase();
+  m_editableRoot->saveAccountDataToDatabase();
 
   accept();
 }
diff --git a/src/services/tt-rss/network/ttrssnetworkfactory.cpp b/src/services/tt-rss/network/ttrssnetworkfactory.cpp
index 6576b9c08..3c854f1bd 100755
--- a/src/services/tt-rss/network/ttrssnetworkfactory.cpp
+++ b/src/services/tt-rss/network/ttrssnetworkfactory.cpp
@@ -103,7 +103,7 @@ TtRssResponse TtRssNetworkFactory::logout(QNetworkReply::NetworkError &error) {
   return TtRssResponse(QString::fromUtf8(result_raw));
 }
 
-TtRssGetFeedsCategoriesResponse TtRssNetworkFactory::getFeedsCategories(QNetworkReply::NetworkError &error) {
+TtRssGetFeedsTreeResponse TtRssNetworkFactory::getFeedsTree(QNetworkReply::NetworkError &error) {
   QtJson::JsonObject json;
   json["op"] = "getFeedTree";
   json["sid"] = m_sessionId;
@@ -111,7 +111,7 @@ TtRssGetFeedsCategoriesResponse TtRssNetworkFactory::getFeedsCategories(QNetwork
 
   QByteArray result_raw;
   NetworkResult network_reply = NetworkFactory::uploadData(m_url, DOWNLOAD_TIMEOUT, QtJson::serialize(json), CONTENT_TYPE, result_raw);
-  TtRssGetFeedsCategoriesResponse result(QString::fromUtf8(result_raw));
+  TtRssGetFeedsTreeResponse result(QString::fromUtf8(result_raw));
 
   if (result.isNotLoggedIn()) {
     // We are not logged in.
@@ -119,7 +119,7 @@ TtRssGetFeedsCategoriesResponse TtRssNetworkFactory::getFeedsCategories(QNetwork
     json["sid"] = m_sessionId;
 
     network_reply = NetworkFactory::uploadData(m_url, DOWNLOAD_TIMEOUT, QtJson::serialize(json), CONTENT_TYPE, result_raw);
-    result = TtRssGetFeedsCategoriesResponse(QString::fromUtf8(result_raw));
+    result = TtRssGetFeedsTreeResponse(QString::fromUtf8(result_raw));
   }
 
   error = network_reply.first;
@@ -203,14 +203,13 @@ bool TtRssResponse::hasError() const {
 }
 
 
-TtRssGetFeedsCategoriesResponse::TtRssGetFeedsCategoriesResponse(const QString &raw_content) : TtRssResponse(raw_content) {
-
+TtRssGetFeedsTreeResponse::TtRssGetFeedsTreeResponse(const QString &raw_content) : TtRssResponse(raw_content) {
 }
 
-TtRssGetFeedsCategoriesResponse::~TtRssGetFeedsCategoriesResponse() {
+TtRssGetFeedsTreeResponse::~TtRssGetFeedsTreeResponse() {
 }
 
-RootItem *TtRssGetFeedsCategoriesResponse::feedsCategories() {
+RootItem *TtRssGetFeedsTreeResponse::feedsTree() {
   RootItem *parent = new RootItem();
 
   if (status() == API_STATUS_OK) {
diff --git a/src/services/tt-rss/network/ttrssnetworkfactory.h b/src/services/tt-rss/network/ttrssnetworkfactory.h
index 5bc259209..6db415d73 100755
--- a/src/services/tt-rss/network/ttrssnetworkfactory.h
+++ b/src/services/tt-rss/network/ttrssnetworkfactory.h
@@ -53,12 +53,12 @@ class TtRssLoginResponse : public TtRssResponse {
     QString sessionId() const;
 };
 
-class TtRssGetFeedsCategoriesResponse : public TtRssResponse {
+class TtRssGetFeedsTreeResponse : public TtRssResponse {
   public:
-    explicit TtRssGetFeedsCategoriesResponse(const QString &raw_content = QString());
-    virtual ~TtRssGetFeedsCategoriesResponse();
+    explicit TtRssGetFeedsTreeResponse(const QString &raw_content = QString());
+    virtual ~TtRssGetFeedsTreeResponse();
 
-    RootItem *feedsCategories();
+    RootItem *feedsTree();
 };
 
 class TtRssNetworkFactory {
@@ -84,7 +84,7 @@ class TtRssNetworkFactory {
     TtRssResponse logout(QNetworkReply::NetworkError &error);
 
     // Gets feeds from the server.
-    TtRssGetFeedsCategoriesResponse getFeedsCategories(QNetworkReply::NetworkError &error);
+    TtRssGetFeedsTreeResponse getFeedsTree(QNetworkReply::NetworkError &error);
 
   private:   
     QString m_url;
diff --git a/src/services/tt-rss/ttrssserviceentrypoint.cpp b/src/services/tt-rss/ttrssserviceentrypoint.cpp
index 02c03c88a..6af16e2a8 100755
--- a/src/services/tt-rss/ttrssserviceentrypoint.cpp
+++ b/src/services/tt-rss/ttrssserviceentrypoint.cpp
@@ -87,7 +87,6 @@ QList<ServiceRoot*> TtRssServiceEntryPoint::initializeSubtree() {
       root->network()->setPassword(query.value(2).toString());
       root->network()->setUrl(query.value(3).toString());
       root->updateTitle();
-      root->loadFromDatabase();
       roots.append(root);
     }
   }
diff --git a/src/services/tt-rss/ttrssserviceroot.cpp b/src/services/tt-rss/ttrssserviceroot.cpp
index 48575f313..7f1086a5b 100755
--- a/src/services/tt-rss/ttrssserviceroot.cpp
+++ b/src/services/tt-rss/ttrssserviceroot.cpp
@@ -42,6 +42,8 @@ TtRssServiceRoot::~TtRssServiceRoot() {
 }
 
 void TtRssServiceRoot::start() {
+  loadFeedTreeFromDatabase();
+
   if (childItems().isEmpty()) {
     syncIn();
   }
@@ -164,7 +166,7 @@ TtRssNetworkFactory *TtRssServiceRoot::network() const {
   return m_network;
 }
 
-void TtRssServiceRoot::saveToDatabase() {
+void TtRssServiceRoot::saveAccountDataToDatabase() {
   if (accountId() != NO_PARENT_CATEGORY) {
     // We are overwritting previously saved data.
     QSqlDatabase database = qApp->database()->connection(metaObject()->className(), DatabaseFactory::FromSettings);
@@ -209,10 +211,6 @@ void TtRssServiceRoot::saveToDatabase() {
   }
 }
 
-void TtRssServiceRoot::loadFromDatabase() {
-  // TODO: Load feeds/categories from DB.
-}
-
 void TtRssServiceRoot::updateTitle() {
   QString host = QUrl(m_network->url()).host();
 
@@ -227,8 +225,34 @@ void TtRssServiceRoot::syncIn() {
   // TODO: provede stažení kanálů/kategorií
   // ze serveru, a sloučení s aktuálními
   // neprovádí aktualizace kanálů ani stažení počtu nepřečtených zpráv
-  QNetworkReply::NetworkError err;
+  QNetworkReply::NetworkError error;
+  RootItem *new_feeds = m_network->getFeedsTree(error).feedsTree();
 
+  if (error == QNetworkReply::NoError) {
+    // We have new feeds, purge old and set new to DB.
+    removeOldFeedTree();
 
-  RootItem *aa = m_network->getFeedsCategories(err).feedsCategories();
+    foreach (RootItem *child, childItems()) {
+      requestItemRemoval(child);
+    }
+
+    clearChildren();
+
+    // Old stuff is gone.
+    storeNewFeedTree(new_feeds);
+    loadFeedTreeFromDatabase();
+    //itemChanged(QList<RootItem*>() << this);
+  }
+}
+
+void TtRssServiceRoot::removeOldFeedTree() {
+  // TODO: vymazat kanaly a kategorie.
+}
+
+void TtRssServiceRoot::storeNewFeedTree(RootItem *tree_root) {
+  // TODO: ulozit do db.
+}
+
+void TtRssServiceRoot::loadFeedTreeFromDatabase() {
+  // TODO: nacist kanaly a kategorie z db
 }
diff --git a/src/services/tt-rss/ttrssserviceroot.h b/src/services/tt-rss/ttrssserviceroot.h
index 00ba6446e..f34fba2b3 100755
--- a/src/services/tt-rss/ttrssserviceroot.h
+++ b/src/services/tt-rss/ttrssserviceroot.h
@@ -66,14 +66,17 @@ class TtRssServiceRoot : public ServiceRoot {
 
     TtRssNetworkFactory *network() const;
 
-    void saveToDatabase();
-    void loadFromDatabase();
+    void saveAccountDataToDatabase();
     void updateTitle();
 
   private slots:
     void syncIn();
 
   private:
+    void removeOldFeedTree();
+    void storeNewFeedTree(RootItem *tree_root);
+    void loadFeedTreeFromDatabase();
+
     QAction *m_actionSyncIn;
     QList<QAction*> m_serviceMenu;