The final season of How I Met Your Mother begins on Sept. 23, and if the new teaser is any indication, it's going to be all about The Mother. We briefly "met" her last season, but all we've heard her say is "One ticket to Farhampton, please." Not anymore. The latest preview has The Mother seated side-by-side with Lily on the train, and it sounds like things get ugly. Watch the clip and, if you haven't seen them already, take a look at all the pictures of the final season!
In case you missed it, watch the first teaser for How I Met Your Mother's last season after the jump.