How I Met Your Mother: Season 9 (2013 - 2014)

In the first episode of the ninth and final series, the gang all travel to Long Island for Robin and Barney's wedding, but the happy couple make a startling discovery about their families en route. On his way back from Minnesota, Marshall is horrified to see that his mother has posted a picture online giving away the fact that he has accepted his dream job without consulting Lily first. Lily has an important encounter on the train, and realises that Ted hasn't dealt with his feelings for Robin.

Brand new series: Marshall struggles to find a way to get back to New York in time for the wedding and is forced to take to the road in a gas-guzzling car. When James reveals that he has cheated on his husband Tom and is getting a divorce, Robin worries about how Barney will react to the news. Ted frets about being the only single man at the wedding and staying alone at a romantic hotel.

Brand new series: Lily catches a glimpse of the list of things Ted wants to do in New York before he moves to Chicago and frets that she is the only person who knows about his plans. Robin and Barney realise they have very little time together before their elderly relatives arrive for the wedding. When Lily discovers that Ted and Marshall accidentally destroyed her best dress, she gets her own back.

Brand new series: During a poker game night, Barney works through his anger at Ted after finding out that Ted still has feelings for Robin. Although he still hasn't made it back to the gang, Marshall helps to settle their dispute by taking on the role of judge via Skype. Lily realises she is Robin's only girlfriend, and that while she is in Rome for a year Robin could be lonely, so she tries to find her a new female pal.

During a pre-wedding game of poker, Robin wins James's ring but refuses to give it back, angering Barney's mother Loretta (guest star Frances Conroy). Barney hates having to choose sides between his fiancée and his family, but Lily coaches him on how to handle the emotional minefield. Ted and Marshall get into a dispute about wedding gifts and thank-you notes that may or may not have been sent in the past.

Ted finds himself with three prospects to be his date for the wedding weekend, but chooses poorly about which one to spend time with. Feeling judged on their messy past by the stern minister who is going to marry them, Barney and Robin steal Marshall and Lily's sweet story about how they first met. During their long journey, Marshall finds out more about his driving companion, Daphne.

Brand new series: Daphne sends a text message to Lily, revealing the truth about Marshall becoming a judge. Marshall begs Ted to sneak into Lily's room while she's asleep and delete the text, invoking the gang's 'no questions asked' rule so that he won't know why. But when Barney and Robin try to help Ted, they realise that they keep acting on their own initiative without consulting each other.

Brand new series: When Robin and Loretta's conflict escalates, Barney is caught in the middle. Marshall and Daphne deal with a stowaway on their road trip, and Ted and Cassie try to enjoy a trip to a lighthouse.

Brand new series: Robin is upset to discover that her mother can't come to the wedding. In flashback, the gang recall the evening six months earlier when Barney accepted a series of romantic challenges from Lily and Robin, and ponder the nature of the ever-changing love triangle between Ted, Robin and Barney. Bryan Cranston guest stars.