There's also a flashback to the train scene where Ted and Tracy first meet that must have had a lot of people in tears. Fans were probably balling when we find out the mother gets sick years later and dies.
"And that kids is how I met you mother," Ted tells the kids.
5 - Ted and Robin?
After finishing his story, Ted's daughter reveals the real reason he was telling them how he met their mother.
"This is a story about how you are totally in love with Aunt Robin and you are thinking of asking her out," his daughter says.
Having lost his wife six years ago, the kids tell Ted that it is totally okay to go after Robin.
The final scene is Ted showing up to Robin's with the blue french horn, her head out the window smiling.