When Barney is about to complete the perfect week the gang roots him on in order to forget about their own miserable week.
Maggie, a girl Ted has wanted to date for years has broken up with her boyfriend, giving him and many other guys a chance to score with her.
In the sixth season finale, a new lead in a cold case requires Lisbon to delay her plans to leave for Washington, D.C. with Marcus Pike, giving Jane time to finally come to terms with his feelings for her and decide on a course of action.
After determining a serial killer's identity, the team works with the FBI to apprehend him and protect potential targets.
An FBI agent once romantically involved with Stillman asks the team for help finding a serial killer who has evaded her for 30 years.