How I Met Your Mother:
Season:     7     / Episode:     21    
Now We're Even

Dom Cobb and his partner Arthur perform an illegal corporate espionage by entering the subconscious minds of their targets, using two-level "dream within a dream" strategies to "extract" valuable information. Each of the "extractors" carries a "totem", a personalized small object whose behavior is unpredictable to anyone except its owner, to determine whether they are in another person's dream. Cobb's totem is a spinning top which perpetually spins in the dream state. Cobb struggles with memories of his dead wife, Mal, who manifests within his dreams and tries to sabotage his efforts.

Robin wants Barney to ask her father for permission to marry her. Lily and Ted both want to plan the wedding. Baby Marvin's constipation causes stress for Lily and Marshall.

In the 200th episode of the series, The Mother recounts how she met Ted, as well as other significant events that occurred in her life during the previous eight years.