How I Met Your Mother 4x21
The Three Days Rule
Ted breaks one of Barney and Marshall’s relationship rules, texting a woman he recently met, so the pair play a joke on Ted by pretending to be the woman.
How I Met Your Mother season 4
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4x1Do I Know You? Sep 22, 2008 -
4x2The Best Burger in New York Sep 29, 2008 -
4x3I Heart NJ Oct 06, 2008 -
4x4Intervention Oct 13, 2008 -
4x5Shelter Island Oct 20, 2008 -
4x6Happily Ever After Nov 03, 2008 -
4x7Not a Father's Day Nov 10, 2008 -
4x8"Woooo!" Nov 17, 2008 -
4x9The Naked Man Nov 24, 2008 -
4x10The Fight Dec 08, 2008 -
4x11Little Minnesota Dec 15, 2008 -
4x12Benefits Jan 12, 2009 -
4x13Three Days of Snow Jan 19, 2009 -
4x14The Possimpible Feb 02, 2009 -
4x15The Stinsons Mar 02, 2009 -
4x16Sorry, Bro Mar 09, 2009 -
4x17The Front Porch Mar 16, 2009 -
4x18Old King Clancy Mar 23, 2009 -
4x19Murtaugh Mar 30, 2009 -
4x20Mosbius Designs Apr 13, 2009 -
4x21The Three Days Rule Apr 27, 2009 -
4x22Right Place, Right Time May 04, 2009 -
4x23As Fast as She Can May 11, 2009 -
4x24The Leap May 18, 2009