Barney's playboy brother arrives as Barney is struggling with the realisation that all his friends have settled into relationships.
Stewie and Brian use the remote control to travel through alternate universes. They end up in a world run by dogs and a post-apocalyptic world.
Brennan and Booth contemplate the upcoming adjustments they must make to their living situation, while the team investigate a complicated murder involving a woman whose body was discovered in a paintball field.
When a man next to House on a flight from Singapore to the United States becomes violently ill, Cuddy suspects he has a deadly contagious virus.
The assistants whip themselves into a frenzy over who will get the swag when Christine announces she is going to clean out the magazine's closet.