Season 8 Episode 10 Big Man on Hippocampus
After hitting his head, Peter develops amnesia. He forgets everything, including his family and his friends. Lois takes extra care of Peter and tries everything to jog his memory and until he starts hitting on other women. Having had enough of his antics, Lois takes the kids and leaves.
This Is Pre-Release And Is Not Out Until The 20th December
The major sub-plot circles around the youngest Griffin, Stewie, who has a near-death experience at a pool when a lifeguard chair falls on him, but he survives. After having a vision of being in Hell, he decides to change his ways, but this doesn’t last long. 
After Peter throws Carter a wild bachelor party, he slips into a deep coma that not even Dr. House can bring him out of. Lois, now in control of Pewterschmidt Industries, is convinced by Peter to let him run the operation. Overcome by power, Peter fires the entire board. Carter eventually recovers, but realizes that it may be tough to get his company back.
After Brian accidentally kills another dog, and no one seems to care, he tries to convince everyone that they should value the life of a dog the same as a human. Meanwhile, Lois hires a maid who doesn’t listen to Peter.
Peter and the guys interview potential friends to fill the vacancy left by Cleveland. However, things don’t look so good for NBA star Kevin Garnett when it’s discovered that Quagmire hates him.
Peter buys a ham radio at Quagmire’s garage sale and communicates with the ghost of Ronald Reagan. Peter becomes fond of his friendship with Reagan until it’s pointed out by the guys to be Rich Little doing impressions. He goes to return the radio to Quagmire, noticing a baby in a basket by his door.
After attending to the concert of a teen superstar, Stewie discovers a surprising secret about the singer. Meanwhile back at home, Chris tries to prove to the existence of the Evil Monkey.
When Brian begins dating an older woman, the family begins to make fun of him. After Brian’s new fling breaks her hip, he gets the pleasure of becoming her errand boy.
Two guys (voices of Dan Aykroyd and Chevy Chase) who turn out to be spies move into Cleveland’s old house and soon have dossiers on everybody in Quahog. Then they head to Russia for a secret mission, with suspicious Stewie and Brian in hot pursuit. A “Cleveland Show” crossover includes brief appearances by Cleveland and Tim.
