Christmas Guy

The Griffin family goes to Quahog Mall for the annual Christmas Carnival, but they find the festivities have been cancelled, causing Stewie to go on a destructive rampage. Vinny learns that Carter, Lois's father, canceled the carnival. Peter confronts Carter, who tells him that it was cancelled because he despises the Christmas season. Peter vows to help Carter find his Christmas spirit. Peter tries a fake story letter, making Carter drink egg nog in a hotel room, and having him masturbate, to no effect. The turning point comes when Peter slyly tells a horrified Carter that people in Quahog are wondering if Carter is Jewish, which makes the grumpy old man reverse his position and green-light the carnival's return.

Despite being re-established at the Quahog Mall, the Christmas Carnival fails to raise Stewie's spirits. When the Mall Santa Claus asks Stewie what he wants for Christmas, Stewie realizes he wants Brian back. Vinny pretends to be Brian, acting like an intellectual and a writer, but fails to cheer up Stewie. Trying to raise his spirits, Vinny and Stewie return to the Quahog Mall, where Stewie spots his past self from a cutaway gag from a previous episode time travelling to purchase a gift. Remembering the time travel occurred prior to Brian's death, Stewie realizes he can use Past Stewie's return pad to save Brian. Vinny appeals to Past Stewie's vanity to obtain his backpack, and brings it to Present Stewie. Stewie says goodbye to Vinny, whom he and the family will no longer have met if Brian lives.

Stewie arrives in the past, saving Brian from being hit by the car. After explaining the situation to Brian, Stewie sends the return pad back to his past self in order to prevent a temporal paradox. Now unable to return and having altered his past, Stewie fades from existence as Brian thanks him for his actions. Unaware of what occurred, Past Stewie comes out of the house and wonders who Brian was talking to. In the present on Christmas Day, Brian is still alive and well, thanks to Stewie's time traveling skills. Grateful to him for saving his life, Brian thanks Stewie, who remains oblivious to the averted death, as well as his alternate self's actions.