HOW I MET YOUR MOTHER “The Leap” Season 4 Episode 24 May 15, 2009 How I Met Your Mother Watch a sneak peek at HOW I MET YOUR MOTHER “The Leap” Season 4 Episode 24 airing this Monday May 18 at 8:30pm on CBS. Watch any How I Met Your Mother Episode that you may have missed. Episode Synopsis: HOW I MET YOUR MOTHER “As Fast As She Can” Season 4 Episode 24 – When Ted pulls an all-nighter working on a pitch in an attempt to bring business to his fledgling architecture firm, Marshall tries to lure him to the roof for a surprise 31st birthday party, on the fourth season finale of HOW I MET YOUR MOTHER, Monday, May 18 (8:30-9:00 PM, ET/PT) on the CBS Television Network. Read all our How I Met Your Mother coverage. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)