Television personality Regis Philbin meets a burger-mad Marshall while on his quest to find the restaurant where he had his very first New York burger.
As Stella responds to Ted's proposal, Barney realizes that he's in love with Robin.
HOW I MET YOUR MOTHER returns for a hilarious fourth season! It all started when Ted's best friend, Marshall, dropped the bombshell that he was going to propose to his long-time girlfriend, and now wife, Lily, a kindergarten teacher. At that moment, Ted realized that he had better get a move on if he too hopes to find true love. Helping him in his quest is Barney, a friend with endless, sometimes outrageous opinions, a penchant for suits and a foolproof way to meet women. When Ted met Robin, it was love at first sight, but when things didn't work out, Ted realized destiny must have something else in store. The series is narrated through flashbacks from the future.
When Ted is in an accident, he re-evaluates his life and relationship with Stella.
When Barney and Abby realize that they have one thing in common - their mutual hatred of Ted - the "couple" decides to go to the bar to flaunt their new relationship in Ted's face.
When Ted tells the gang Stella's intimate secret, he must face the consequences of breaking her trust.
When a guilt-ridden Barney breaks the "Bro Code", he struggles with the ramifications of his misstep.
When Robin rekindles things with an old flame, he crushes her again, but Barney, in his own inimitable style, helps her realize that she is awesome.
After Marshall is verbally emasculated by his boss, he struggles with the fact that taking a job with a "big bad" corporate law firm may have been a major mistake.
When Barney's love life is sabotaged by a mystery woman, he turns to tournament bracketology to narrow down the field of 64 women with the most cause to hate his guts.
Continuing his passionate quest to find the woman who will one day be his wife, Ted pursues his beautiful dermatologist, Stella. While Stella turns down his repeated efforts for a date, her office receptionist, Abby, becomes smitten with Ted.
When Ted takes a page from Barney's book and lives like there's no tomorrow, he gets a post St. Patty's Day reality check from Marshall.
When the gang finds out that Ted is taking his doctor on a date, they try to convince him, through examples of their own toxic experiences, why it's never a good idea to get into a relationship with someone you see on a regular basis.
When Barney loses his "mojo," he attends the Victoria's Secret Fall Fashion Show after-party to get himself back on track, but his smooth operating skills are put to the test when he meets supermodel Heidi Klum.
As Lily and Marshall host their first Thanksgiving as a married couple, Barney is tortured by the tick-tock of the slap bet countdown clock and the uncertainty of the exact moment the slap is going to be delivered.
When Ted thinks he has met a wonderful girl, the gang can't help but point out a deal-breaking flaw, eventually leading to a heated exchange of barbs among the group.