How I Met Your Mother
A highlight from the "HIMYM" premiere was when Lily met Ted's future wife on the train to the wedding. CBS/How I Met Your Mother/Screenshot

“How I Met Your Mother” fans don’t have to wait until the season 9 premiere on Monday to get a peek at the gang. New sneak peek video clips from episode 1, “The Locket,” have leaked online and give viewers a look at how exactly Lily will meet Ted’s future wife – Cristin Milioti’s “Mother” character.

Thanks to promo videos for the premiere, fans of the long-running CBS series know that Lily will meet Cristin Milioti’s character (who currently remains nameless) on a train to Barney and Robin’s wedding. But Lily was supposed to be driving to the Farhampton wedding with Ted … so how does she end up on the train?

In a video posted by Spoiler TV, viewers learn that Lily’s weekend isn’t off to the greatest start. With Marshall and baby Marvin visiting Marshall’s mom in Minnesota, Lily is getting annoyed by her mother-in-law’s constant (and snarky) photo updates.

“She’s been posting these ‘cute’ baby pics of Marvin, but it’s all just propaganda,” Lily explains to Ted in the car as a slew of photos show Marvin with ABC blocks that spell out “ROME SUX.” And while she’s annoyed by the photos, Lily becomes more fed up when Ted goes off an exit (again) – this time for Mennonite windmills.

“Get back on the expressway now,” Lily says, losing her patience with Ted.

“The expressway is for gloveless amateurs,” Ted responds smoothly. But unfortunately for him Lily is done.

“I’m done,” she tells him. “There is a train station coming up, just drop me off.”

“Okay,” he says to her. “But some newfangled train is not going to stop at the 40-foot butter churn.”

Their conversation takes a turn for the ugly when Lily tells Ted that at least the train will have a 21st century toilet … and Ted tells her that she’s a 21st century toilet.

[Click HERE to watch the video of Lily and Ted in the car.]

And THAT is how Lily ends up on the same train that Cristin Milioti’s “Mother” character is on. What we don’t know yet is what happens between Lily and Milioti that results in Lily trying to bite her and Milioti swatting Lily on the nose with a rolled-up magazine.

The “How I Met Your Mother” season 9 premiere will air on CBS on Monday at 8 p.m. EDT. Will you be tuning in? Let us know in the comments section.