Meg finds religion while in bed with the Mumps, and reveals to the community that Brian is an Atheist. Meanwhile, Stewie builds a transporter to bring the cast of "Star Trek: The Next Generation" to Quahog.
Brian helps Stewie meet Miley Cyrus before her concert in Quahog, and they discover a secret about her identity. Meanwhile, the family discovers that the evil monkey in Chris's closet isn't actually evil.
When Brian accidentally kills another dog he is surprised to see that no one cares so he tries to convince everyone that the life of a dog should have the same value as a human one. Meanwhile, Lois hires a maid who doesn't listen to Peter.