When Stewie refuses to sleep in his own bed because of nightmares, Peter can’t stand it, so he goes to sleep in the attic. Peter turns the attic into a man cave and all of the guys begin hanging out there, which makes Lois incredibly angry. Meanwhile, Brian helps Stewie overcome his fears by building a device to go into his nightmares and defeat his demons.

Peter fills in for Santa at the mall, but lets the power go to his head when he realises just what he can get away with. Meanwhile, Stewie and Brian become holiday office-party crashers.

Quagmire lands free plane tickets for the guys' trip to San Francisco, but they begin to doubt his flying abilities after getting a look at the auto-pilot function. While in the air, sudden events give Quagmire's skills a run for the money.

When Meg takes Stewie to the mall to meet Santa, she has a surprising response. Meanwhile, Stewie is entirely scarred from the same experience and Brian tries to help him process it.