Robin accepts Ted's invite to a friend's wedding, but thanks to Ted, the couple may never make it down the aisle.

Ted finds a new woman at the wedding. They want to remember the evening so they don't exchange last names or numbers; but Ted takes a big fall when he tries to find out her name.

When Ted is packing his stuff for his move to New Jersey, he discovers that the gang was going to hold an intervention for his engagement to Stella and demands they hold it anyway.

Marshall and Lily try to figure out how to conceive a baby with the gender of their choice; Robin's perky new co-anchor irritates her.

Barney is upset after Robin wins James's wedding ring during the poker game, and Ted argues with Marshall and Lily over whether he gave them a wedding gift.