The Lighthouse: When Robin and Loretta's conflict escalates, Barney is caught in the middle. Marshall and Daphne deal with a stowaway on their road trip. (S9 Ep8) [AD,S]
Platonish: The gang recall the evening six months earlier when Barney accepted a series of romantic challenges from Lily and Robin. Bryan Cranston guests. (S9 Ep9) [AD,S]
Mom and Dad: Seeing his mother and father together for the first time in years, Barney becomes convinced that he can reunite them. John Lithgow guest stars. (S9 Ep10) [AD,S]
Bedtime Stories: To get Marvin off to sleep while they are stuck in traffic on the bus, Marshall creates three rhyming bedtime stories based on the gang's many exploits. (S9 Ep11) [AD,S]
The Rehearsal Dinner: Barney becomes convinced that Robin is planning to throw him a special wedding rehearsal dinner at the laser tag arena, which infuriates her. (S9 Ep12) [AD,S]
Bass Player Wanted: The friends encounter a guest at the hotel who intentionally stirs up trouble between them. Marshall and baby Marvin finally arrive in Farhampton. (S9 Ep13) [AD,S]
Slapsgiving 3: Slappointment in Slapmarra: Marshall reveals how he learnt enough speed, strength and accuracy to deliver the Slap of a Million Exploding Suns to Barney. (S9 Ep14) [AD,S]
Unpause: Marshall and Lily's big fight about Marshall accepting a judgeship without telling Lily has been looming, but the couple put it on hold to enjoy their reunion. (S9 Ep15) [AD,S]
How Your Mother Met Me: In flashback for the 200th episode, it is revealed how Ted has a history of missed connections with his future wife, such as when he meets her roommate. (S9 Ep16) [AD,S]
Sunrise: On the eve of the wedding, Ted and Robin take a walk on the beach and have a heart-to-heart conversation. Marshall finds out that his hotel room is haunted. (S9 Ep17) [AD,S]
Rally: Barney can't get out of bed on the morning of his wedding because he had too much to drink the night before, so the gang try to make him a famous hangover cure. (S9 Ep18) [AD,S]
Vesuvius: On the morning of the wedding, Ted helps a stressed Barney decide which suit to wear. Lily thinks Robin isn't treating her big day with the gravity it deserves. (S9 Ep19) [AD,S]
Daisy: Marshall tries to work out where Lily went when she stormed out of the hotel on the night of their big fight. Robin is worried by Barney's pre-wedding behaviour. (S9 Ep20) [AD,S]
Gary Blauman: When an old friend of the gang, Gary Blauman, shows up at the hotel for Robin and Barney's wedding unexpectedly, the seating plan is thrown into disarray. (S9 Ep21) [AD,S]
The End of the Aisle: With only 30 minutes before the wedding, both Robin and Barney are having panic attacks, and Lily and Marshall think about their own wedding vows. (S9 Ep22) [AD,S]
Last Forever (Part 1/2): With Barney and Robin's wedding day over, Ted says goodbye to the gang and prepares to leave for a new life in Chicago, but fate has other plans. (S9 Ep23) [AD,S]
Last Forever (Part 2/2): The gang are seeing less of each other, but reunite one more time for Ted's wedding. A huge event in his personal life leads Barney to change his ways. (S9 Ep24) [AD,S]
Pilot: Ted realises he wants to find true love when his best friend Marshall proposes to his girlfriend Lily. Soon, Ted becomes smitten when he meets Robin in a nearby bar. (S1 Ep1) [AD,S]
Purple Giraffe: Ted feels desperate when Robin doesn't turn up to a party he invited her to as a second date and he vows to continue throwing parties until she does. (S1 Ep2) [AD,S]
Sunrise: On the eve of the wedding, Ted and Robin take a walk on the beach and have a heart-to-heart conversation. Marshall finds out that his hotel room is haunted. (S9 Ep17) [AD,S]
Rally: Barney can't get out of bed on the morning of his wedding because he had too much to drink the night before, so the gang try to make him a famous hangover cure. (S9 Ep18) [AD,S]
No Questions Asked: Daphne sends a text message to Lily revealing the truth about Marshall becoming a judge. Marshall begs Ted to sneak into Lily's room and delete it. (S9 Ep7) [AD,S]
P.S. I Love You: Marshall and Lily worry that Ted's new girlfriend Jeanette is a deranged stalker, but Ted insists that their meeting is simply the result of destiny. (S8 Ep15) [AD,S]
Ring Up!: Robin is upset when she realises that wearing her new engagement ring makes her feel invisible. Ted begins dating a 20-year-old woman with a wild social life. (S8 Ep14) [AD,S]
Band or DJ?: When Robin learns that Barney failed to ask her father's permission before proposing, she insists that he gets Robin Sr's approval as soon as possible. (S8 Ep13) [AD,S]
The Final Page (Part 2/2): Barney tells Ted he plans to make a Christmas proposal to Patrice. Marshall and Lily have their first night away together since baby Marvin's birth. (S8 Ep12) [AD,S]
The Final Page (Part 1/2): Ted invites his old university professor, who insisted he would never make it as an architect, to the grand opening of the GNB building. (S8 Ep11) [AD,S]
The Over-Correction: Robin grows suspicious of Barney's relationship with Patrice and, thinking that Barney is going through an emotional crisis, tries to split them up. (S8 Ep10) [AD,S]
Lobster Crawl: Ted fills in as baby Marvin's nanny as a favour to Lily and Marshall, while Robin is determined to get Barney back, no matter what it takes. (S8 Ep9) [AD,S]
Twelve Horny Women: Marshall takes on Brad, who has become his nemesis, in the biggest case of his career, and the gang debate who was the biggest trouble maker as a teenager. (S8 Ep8) [AD,S]
The Stamp Tramp: Marshall runs into his old law school classmate Brad, who has fallen on hard times, and decides to help out by recommending him for a job at his firm. (S8 Ep7) [AD,S]
The Autumn of Break-Ups: Victoria drops hints to Ted about wanting more commitment in their relationship. Barney becomes excessively fond of a dog he finds in the street. (S8 Ep5) [AD,S]
Who Wants to Be a Godparent?: Lily and Marshall almost get hit by a car, so they decide to make a will and find a godparent and potential legal guardian for baby Marvin. (S8 Ep4) [AD,S]
Nannies: Lily and Marshall struggle to find a good nanny within their budget for baby Marvin, while Robin and Ted compete over who has the best new relationship. (S8 Ep3) [AD,S]
The Pre-Nup: On the advice of a colleague, Barney draws up an extensive pre-nuptial agreement that leaves Quinn outraged and a war of the sexes develops in the group. (S8 Ep2) [AD,S]
Farhampton: Ted reassures an anxious Robin on her wedding day, new parents Lily and Marshall suffer from sleep deprivation, and Barney reveals he hasn't been honest with Quinn. (S8 Ep1) [AD,S]
The Magician's Code (Part 2/2): Barney and Quinn take their first holiday together but get in trouble with airport security. Ted gets in touch with his ex-girlfriend Victoria. (S7 Ep24) [AD,S]
Who Wants to Be a Godparent?: Lily and Marshall almost get hit by a car, so they decide to make a will and find a godparent and potential legal guardian for baby Marvin. (S8 Ep4) [AD,S]
Nannies: Lily and Marshall struggle to find a good nanny within their budget for baby Marvin, while Robin and Ted compete over who has the best new relationship. (S8 Ep3) [AD,S]
The Pre-Nup: On the advice of a colleague, Barney draws up an extensive pre-nuptial agreement that leaves Quinn outraged and a war of the sexes develops in the group. (S8 Ep2) [AD,S]
Farhampton: Ted reassures an anxious Robin on her wedding day, new parents Lily and Marshall suffer from sleep deprivation, and Barney reveals he hasn't been honest with Quinn. (S8 Ep1) [AD,S]
The Magician's Code (Part 2/2): Barney and Quinn take their first holiday together but get in trouble with airport security. Ted gets in touch with his ex-girlfriend Victoria. (S7 Ep24) [AD,S]
The Magician's Code (Part 1/2): Lily goes into labour while Marshall is in Atlantic City with Barney, so Ted and Robin try to distract her from her painful contractions. (S7 Ep23) [AD,S]
Trilogy Time: When Barney and Quinn start living together, Barney's reluctance to throw out any of his old possessions makes the gang doubt his faith in the relationship. (S7 Ep20) [AD,S]
The Broath: Barney tries to persuade his friends to meet Quinn and get to know her properly. However, Ted is convinced that Quinn is only after Barney's money. (S7 Ep19) [AD,S]
The Burning Beekeeper: Lily and Marshall throw a housewarming party at which Lily's father Mickey causes consternation by admitting he is keeping bees in the basement. (S7 Ep15) [AD,S]
The Rebound Girl: Ted and Barney plan to adopt a child together because as men they feel they understand each other better than a man and a woman ever could. (S7 Ep11) [AD,S]
Disaster Averted: Barney is desperate to get rid of the ducky tie and drives a hard bargain to be allowed to remove it. Later, the gang reminisce about Hurricane Irene. (S7 Ep9) [AD,S]
The Slutty Pumpkin Returns: Ted finally meets the mystery girl who attracted his attention by wearing a pumpkin costume at a Halloween party a decade previously. (S7 Ep8) [AD,S]
Noretta: The gang realise that their partners bear some resemblance to their parents. Barney and Nora's romantic evening is ruined by a string of disasters. (S7 Ep7) [AD,S]
Mystery vs History: Ted shocks his friends by going on a date without researching the woman on the internet beforehand. Lily and Marshall find out the sex of their baby. (S7 Ep6) [AD,S]
The Broath: Barney tries to persuade his friends to meet Quinn and get to know her properly. However, Ted is convinced that Quinn is only after Barney's money. (S7 Ep19) [AD,S]
The Burning Beekeeper: Lily and Marshall throw a housewarming party at which Lily's father Mickey causes consternation by admitting he is keeping bees in the basement. (S7 Ep15) [AD,S,W]
The Rebound Girl: Ted and Barney plan to adopt a child together because as men they feel they understand each other better than a man and a woman ever could. (S7 Ep11) [AD,S]
Disaster Averted: Barney is desperate to get rid of the ducky tie and drives a hard bargain to be allowed to remove it. Later, the gang reminisce about Hurricane Irene. (S7 Ep9) [AD,S]
The Slutty Pumpkin Returns: Ted finally meets the mystery girl who attracted his attention by wearing a pumpkin costume at a Halloween party a decade previously. (S7 Ep8) [AD,S]
Noretta: The gang realise that their partners bear some resemblance to their parents. Barney and Nora's romantic evening is ruined by a string of disasters. (S7 Ep7) [AD,S]
Mystery vs History: Ted shocks his friends by going on a date without researching the woman on the internet beforehand. Lily and Marshall find out the sex of their baby. (S7 Ep6) [AD,S]
Field Trip: When Marshall witnesses his manager's soft approach in settling with a powerful company, he takes matters into his own hands. Ted takes his class on a trip. (S7 Ep5) [AD,S]
The Naked Truth: Marshall lands his dream job but worries that his past indiscretions will cost him the role. Ted can't decide who to bring to the Architects' Ball. (S7 Ep2) [AD,S]
The Best Man: While Barney prepares for his wedding to a mystery bride, he and Ted reminisce about Punchy's wedding. Robin considers telling Barney she has feelings for him. (S7 Ep1) [AD,S]
Challenge Accepted: Robin and Barney bond as they try to prevent Ted getting back together with Zoey. Marshall and Lily get food poisoning. Ted serves as best man at a wedding. (S6 Ep24) [AD,S]
Landmarks: Robin makes her opinion known when Ted is called as a witness as the Landmark Preservation Council meets to decide on the fate of the Arcadian Hotel. (S6 Ep23) [AD,S]
The Perfect Cocktail: Marshall and Barney fall out over the destruction of the Arcadian Hotel so Robin and Lily create a super cocktail that will force them to make up. (S6 Ep22) [AD,S]
Hopeless: Barney is determined to show his dad that it was a mistake to have given up his former life of wild partying, drinking and sleeping around. (S6 Ep21) [AD,S]
Challenge Accepted: Robin and Barney bond as they try to prevent Ted getting back together with Zoey. Marshall and Lily get food poisoning. Ted serves as best man at a wedding. (S6 Ep24) [AD,S,W]
Landmarks: Robin makes her opinion known when Ted is called as a witness as the Landmark Preservation Council meets to decide on the fate of the Arcadian Hotel. (S6 Ep23) [AD,S]
The Perfect Cocktail: Marshall and Barney fall out over the destruction of the Arcadian Hotel so Robin and Lily create a super cocktail that will force them to make up. (S6 Ep22) [AD,S]
Hopeless: Barney is determined to show his dad that it was a mistake to have given up his former life of wild partying, drinking and sleeping around. (S6 Ep21) [AD,S]
The Exploding Meatball Sub: Marshall's decision to quit his job at the bank and take a volunteer position at an environmental organisation affects the whole gang. (S6 Ep20) [AD,S]
A Change of Heart: The friends have health checks in the wake of Marshall's dad's fatal heart attack. Robin dates a man called Scooby who reminds the gang of a dog. (S6 Ep18) [AD,S]