11. The Mermaid Theory (2010)
When Ted's new friendship with Zoey tests the theory that single men and married women can't be friends, he invites her husband, "The Captain," to hang out with them. Meanwhile, Marshall and Robin decide to spend alone time together, and Barney and Lily possibly have a fight.
Release date: 2010-12-06
User rating:
7.6 / 10
28 votes
Season number: 6
Episode number: 11
Runtime: 23 minutes
Director: Pamela Fryman
Writer: Robia Rashid
Guest stars
Cast
Rest of guest stars - click here to expand
Angus McClelland - Angus