Relationships are like "honesty and trust and all that Lily and Marshall c**p," sums up a report in Hypable about How I Met Your Mother Season 9 Episode 12, "Rehearsal Dinner"

First things first, there is no spectacular revelation in this episode (again) as viewers keep hoping for.

Planning and execution of Barney and Robin's rehearsal dinner forms the crux of the episode. Also, Ted doesn't come through on a promise, which aggravates Lily.

Viewers are initially duped into thinking Barney is being held in laser tag jail after being convinced Robin is throwing him a surprise laser tag rehearsal dinner.

According to Screen Crush, Barney recites how months earlier Robin had reminded him of the need for compromise in a marriage by suggesting a wedding in Canada, which in his own warped viewpoint, led Barney to believe that Robin might try to surprise him with his desire for a laser tag wedding rehearsal.

But eventually we find out that Barney planned all of this from the very beginning. He lures Robin to the laser tag location under the premise he is being held in their jail. He then escapes from his handcuffs, appears with skating rinks and brings Canada to the Farhampton Inn by revealing that they're in the midst of a Canadian-themed rehearsal dinner at an ice rink.

A lot of things suddenly happen at once. A massive Canadian flag falls from the rafters, James and Alan Thicke appear, singing, with James dressed half as Robin Sparkles.

Barney presents Robin with the Wayne Gretzky photograph, and there are hockey players swarming around. Ted, Lily, and all those attending the wedding are on skates, and for the record, Ted knew about this plan, Lily did not (considering how bad she is with keeping secrets).

How I Met Your Mother Season 9: What More to Expect in Upcoming Episodes:

Here's a short list of what's coming up for Ted Mosby (Josh Radnor), Barney Stinson (Neil Patrick Harris), Robin Scherbatsky (Cobie Smulders), Marshall Eriksen (Jason Segel), and Lily Aldrin (Alyson Hannigan).

Cristin Milioti's titular mother role is yet to be named, but the showrunners promise the viewers will find it out before the HIMYM series finale.

- An absolutely eventful rehearsal dinner
- The search for a bass player
- The future Mrs Mosby meets Marshall Eriksen
- A 'Slapsgiving Slappoinment'
- Robin Scherbatsky's mom makes it, after all
- The future Mrs Mosby meets Robin
- The future Mrs Mosby meets Ted (Story told from the mother's POV)
- The culmination of the season-long wedding weekend