'How I Met Your Mother' Season 9 Spoilers: Almost All 20 Episode Titles Leak Online; See Them Here!

The episode list of "How I Met Your Mother" has been revealed. CBS/How I Met Your Mother

The ninth and final season of the CBS hit-show "How I Met Your Mother" is approaching its premiere fast and the fans have been wondering what the final season will have in store. With a special hour-long episode set to kick off the ninth and final season next Monday September 23, viewers can prepare themselves with a recently leaked episode title lineup. The ninth season will focus on the burning question that has been raised since the beginning of the series. Fans will finally meet the mother!

From two teaser promos released by CBS Lily will be the first one to meet Cristin Milioti's mysterious "mother" character in the season premiere. From the promo you see the pair will share a moment while on a train to Farhampton for Barney and Robin's wedding. According to Entertainment Weekly, the moment will include "cookies, a hug, possibly some biting and several peeks into The Mother's personality." It is reported that the entire cast will meet the mother before Ted does.

Take a look at the episode list below and the synopsis for the first four episodes!

Episode 1 - "The Locket" - On their way to Long Island for their wedding weekend, Robin and Barney come across a startling family discovery. Meanwhile, Marshall sees something online that changes the course of his entire journey back east, and Lily confronts Ted about letting go of Robin.

Episode 2 - "Coming Back" - When James reveals that he is getting divorced, Robin worries about how Barney will take the news. Meanwhile, Marshall races to find a way to get to New York in time for the wedding, and Ted deals with being alone at a romantic hotel.

Episode 3 - "Last Time in New York" - When Lily discovers Ted's list of things he wants to do in New York before he moves for Chicago, she becomes frustrated that she is the only person who knows about his plans. Meanwhile, Robin and Barney realize they have very little time together before their relatives arrive for their wedding.

Episode 4 - "The Broken Code" - While Barney works through his anger at Ted after finding out he still has feelings for Robin, Marshall Skypes in to act as a judge and help settle their dispute. Meanwhile, Lily realizes she is Robin's only girlfriend.

Episode 5 - "The Poker Game"

Episode 6 - "Knight Vision"

Episode 7 - "No Questions Asked"

Episode 8 - "The Lighthouse"

Episode 9 - "Platonish"

Episode 10 - "Bass Player Wanted"

Episode 11 - "Mom and Dad"

Episode 12 - ??

Episode 13 - "Rehearsal Dinner"

Episode 14 - "Slapsgiving 3"

Episode 15 - ??

Episode 16 - "How Your Mother Met Me"