As his 31st birthday nears, an all-nighter to try to get business has Ted realizing he may need to pursue a career other than architecture. Meanwhile, Marshall tries to get him up to a rooftop surprise party.
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Ted continues trying to land a client for Mosbius Designs, and when Tony tries to help, nothing goes as planned, for either of them. Barney tries to smooth talk his way out of a ticket.
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Ted explains to his future kids how a series of unrelated events led to a chance encounter with a former girlfriend. Barney makes the 200th notch in his bedpost. Marshall goes overboard when he discovers GNB has a department that can make him charts and graphs.
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