How I Met Your Mother - Full Series Information, Trailer & IMDb Reviews
Watch How I Met Your Mother Season 4 Episode 15 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.
When the gang suspects that Barney has a girlfriend after he mysteriously leaves MacLaren's, they decide to follow him, only to find to their shock that Barney has a wife and child they never knew about.