EP 19 Brian Sings and Swings
Brian falls into a deep depression after being struck by a car driven by Peter. Contemplating how uncertain life is, he goes on a drinking spree, stumbling into bar where Frank Sinatra Jr. (voiced by himself) is performing. Brian teams up with the member of the board, changing his outlook on life but continues to drink.
EP 21 I Take Thee, Quagmire
After courting Peter's maid briefly, Quagmire decides that he's in love. He proposes and she accepts. Quagmire is pulled away from his friends leaving them all distraught. He soon realizes that he's made a mistake. The boys launch a plan to get Quagmire out of his marriage by faking his own death. Meanwhile, Stewie becomes possessive of Lois as she attempts to wean him off of her breast milk. Just as he kicks his addiction to his mother, she confesses that she has missed their bonding.
EP 22 Sibling Rivalry
Peter and Lois get a scare when Lois believes she is pregnant again. Although the test results turn out negative, Lois convinces Peter to get a vasectomy. Before the operation, Peter decides to freeze some sperm, and a mishap at the clinic causes the return of Bertram (Stewie's equally maniacal "sperm brother".
EP 25 You May Now Kiss the... uh... Guy Who Receives
Brian's cousin Jasper visits Quahog to announce his engagement to his partner, Phillipe. Lois struggles with her issues about the two men getting married. The wedding is to take place at the Griffins' house, but plans are halted when Mayor West intends to sign a bill banning gay marriage.
EP 27 Untitled Griffin Family History
When burglars break into the Griffin's house, Peter guides his wife and kids up to a panic room in the attic. Fearing that he might not survive the ordeal, Peter recounts the tale of the Griffin family history, from early man all the way up to World War II Germany.