When Robin rekindles things with an old flame, he crushes her again, but Barney, in his own inimitable style, helps her realize that she is awesome.
When Barney finds a copy of the Canadian kids show "Space Teens" starring Robin's alter-ego "Robin Sparkles," the gang learns more about Robin's past as a performer than they expected.
When Marshall and Lily receive shocking news, it has a profound effect on the gang and forces them to reexamine their own lives. Meanwhile, Robin gets a new job, Barney discovers the joy of giving on Christmas and Ted begins his duties as Best Man for his old friend Punchy's wedding.
While Barney prepares for his wedding to a mystery bride, he and Ted reminisce about Punchy's wedding, including when Marshall and Lily announced they are having a baby. Meanwhile, Robin considers telling Barney she has feelings for him.
