Homer hits his head and losses his memory, so Sarah Crift (who had just escaped the locker in capital city) takes this opportunity to convince Homer she was his wife and they lived in Paris, the city of love. Homer believes it and unintentionally leaves Marge for Sarah. So the rest of the Simpson family heads to Paris to remind Homer of his actual life. Marge kisses Homer after they fall in love once again, and Homer remembers his life and calls the cops on Sarah, who is arrested.