Phil is distracted by a hot neighbour when he's supposed to be looking after his son, Mitchell and Cameron take Lily to their Mummy and Me class, and it's father and son time for Manny and Jay.
Robin and Ted reminisce about past relationships as they search for a drunken Barney on the day of the wedding; Lily and Marshall come to a resolution; Barney befriends two men who are eager to meet women.
When Sheldon learns that people with stunted childhoods can turn into social outcasts, he tries to act like a kid; Meemaw and Dr Sturgis' relationship is tested when she teaches him how to drive.
When Caroline's date fails to turn up, she and Max take advantage of the almost-impossible-to-get reservation at a popular new restaurant.
After attending a new church, Frankie is inspired by a pastor who wants people to live without regrets; Sue starts her own business.