Watch How I Met Your Mother Season 4 Episode 13 ‘Three Days Of Snow’ online for free in full streaming video.
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How I Met Your Mother S04E13 – Three Days Of Snow (Megavideo)

Plot: Lily comes back from a trip to Seattle only to run into a blizzard, which may threaten an airport ritual of meeting Marshall. Meanwhile, Ted & Barney offer to keep watch over the bar at MacLaren’s while awaiting their dates, since Carl wants to close up early.