PeTerminator

"PeTerminator" is the thirteenth episode of the nineteenth season of, and the 362nd episode overall. It first aired on March 7, 2021.

Synopsis
"Stewie designs a "Terminator" Peter robot to destroy Lois for trying to feed him broccoli, but when things don't go according to plan, Stewie and Brian must go on a Terminator-esque mission to save Stewie's life."

- The Futon Critic