Obviously, Lelouch is going to go "omae na" and Charles is just gonna go, "Hey kiddo, come and take a look at my pimp palace! Let me tell you about that witch you've been fucking in your spare time tiger..."
Then Charles goes, "check my power" and Lelouch will be all FFFFFFFFFFFFF, then he teleports back when C.C. bails him out and we get a C.C. flashback somehow.
At the end of the episode, Ling Xinke has fought back Britannia and the ministers of the EU meet in China to form the Union of Nations.