A great reception. Barney talks to a woman. First, Robin moves in with Don and Marshall and Lily have a baby, then Ted...
Ted: Goes? How could she? If I may. Let's be honest. Marshall, Barney and Lily attend combat Robots vs. Marshall: But you can see. Ted: I must make a confession. They belonged to Edgar Allan Poe! Wrestlers.
Plan: A: a snobby high-society party; Q: What kind of party does Ted crash? A: Barney; Q: Who's doppelgänger do Marshall and Lily want to see? A: a Robots Vs Wrestlers event; Q: What event do Marshall and Lily visit? A: a secret pact; Q: What do Marshall and Lily make? Summary: Crashing a snobby high-society party allows Ted to show off how pretentiously intellectual he can be. Barney, Marshall, and Lily visit a Robots Vs Wrestlers event. Marshall and Lily make a secret pact to start trying to have a baby if they ever finally see Barney's doppelgänger.