When Sheldon won’t tell anyone why he’s never mentioned his childhood best friend, Leonard takes matters into his own hands. Bernadette and Penny take out Raj’s fiancée for dinner to…

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…

Stewie builds a DNA-altering machine that will allow him to remain smart forever, but the invention has the adverse effect and he instead transforms into what he should have always…

When Quagmire opens a cat café in town, Brian decides to take a stand to get the café shut down. Meanwhile, when Meg and Chris get in trouble at school,…

When the criminal who shot Joe years ago, leaving Joe in a wheelchair, becomes a fugitive, Quagmire, Joe and Peter team up to hunt the bad guy down.

When Meg learns her crush is gay and interested in Chris, she uses her brother to get closer to him.

Brian discovers that his new blind girlfriend can’t stand dogs, and Peter cannot negotiate his way down the new staircase.

Peter and Chris go to fat camp where they cross paths with a serial killer who targets overweight kids; an album cover frightens Stewie.