Plot (Spoiler)

Just as Lois was presumed dead by Peter’s hand, with Peter about to be jailed for life, she makes a miraculous return from the wilderness and names Stewie as her killer. From there, Stewie escapes the law, where he ties up the family and reveals his true nature. He forces Brian into helping him fulfill his lifelong goal of taking over the world, and succeeds when Stan Smith and the CIA submit to his threats. After suffering several days under Stewie’s reign, Lois decides she has no choice but to arm herself to kill Stewie and save the world.