Marshall and Lily’s plan to buy an apartment is hampered by mistakes and Lily’s hidden debt.

Marshall awaits his bar exam results; Ted introduces his latest girlfriend to the gang, who all see the flaw that Ted has missed

When Barney loses his way with women, he hopes a trip to the Victoria’s Secret Fall Fashion Show will help him regain his form.

Ted lives like there’s no tomorrow during a St. Patrick’s Day celebration with Barney. Lily and Marshall spend the evening at their new apartment with Robin.

Robin shows up with a date and this motivates Ted to ‘get back out there’. We also learn something major about ‘the Mother’.

Ted’s new attitude attracts women in the present and one from his past. The rest of the gang pulls together to help him make the most of the situation.