Stewie Kills Lois and Lois Kills Stewie

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In the former, housewife Lois receives cruise tickets from anthropomorphic dog Brian, and invites Peter on the cruise with her. This upsets Stewie, and he ultimately appears to murder Lois while she is on the cruise, only to find out that she had survived the attack as the year passes. In the latter, Lois is able to expose Stewie as the villain that he is, but he soon accomplishes his dream of world domination.