Part 1 of 2. Allison and Amy accidentally record a conversation about guardian angels on Marv's answering machine and try to erase it before he hears it.
Part 2 of 2. The series concludes with Amy getting hit by a bus and then trying to break up Allison's friend's wedding in order to put Allison's future on track.
Allison reveals how stressful Thanksgiving was the previous year, following the loss of her mother, so Amy suggests planning a "Funsgiving" with games and untraditional food.
Allison helps Amy find a job, when Amy can't pay her rent.
Allison is struck with dating jitters, so Amy suggests she have a "fling" to help her gain confidence.
Allison starts dating a new guy, and Amy tries to facilitate their first kiss in order to turn their relationship into one that lasts.
Amy is required to perform 10 good deeds to earn her angel powers back after losing them by cheating at a game.
Amy becomes guardian angel to both Allison and Brad, after Allison accidentally kills Brad's angel, a honey bee.
Amy's plan to get Allison to stop caring about "looking stupid" backfires when it results in Allison meeting her soul mate prematurely.
Marv balks at allowing Allison to make some changes to their dermatology practice, so Amy creates a temporary position for herself in order to help them work out their differences.
Amy takes Allison to a nightclub to help her stop over thinking everything and let loose. Meanwhile, Marv grows suspicious of Allison's odd new friend and conducts a background search on Amy.
Allison recruits Joey McIntyre of New Kids on the Block to help her patch up a relationship with an old friend as part of a lesson Amy is teaching her about facing her fears.moreless
When Lily left in the middle of their fight, Marshall enlists Ted and Barney to figure out where she went.
Lily and Robin have a fight on the morning of the wedding and Barney could not decide which suit to wear. Meanwhile, even after Ted forbidden his friends to watch a certain movie, they could not resist.moreless
How I Met Your Mother's 200th episode. Dedicated to all the near misses the mother had where she nearly met Ted.
Ted and Robin take advantage of Barney who drinks too much and get him to reveal his secrets. Meanwhile, Marshall tries to avoid fighting with Lily.
The entire episode revolves around Barney receiving a slap from Marshall. Marshall cooks up a long-winded story, and the entire gang goes along with it to scare Barney.
Barney becomes fixated on having his rehearsal dinner at a laser tag arena, much to Robin’s dismay. Meanwhile, Ted doesn’t come through on a promise, which aggravates Lily.
In a flashback episode, the gang ponders the future of the Ted, Robin and Barney love triangle, while Ted gets a call from an old "friend". Meanwhile, Barney accepts a series of challenges from Lily and Robin.moreless