You can find more details about this specific episode on The Movie Database or check out the full season 16 overview on Wikipedia .
In the American Dad! episode the primary feature (or A-plot) follows Steve Smith as he becomes the school's hall monitor and discovers a massive conspiracy involving the lunch lady and a secret underground society . Feature: "The Smith & Wesson of School Safety" [S16E9] The Hall Monitor and the Lunch Lady
: After Steve is appointed hall monitor, he takes the job too seriously, adopting a "dirty cop" persona. His investigation leads him to Mrs. Bananaphitz , the lunch lady, who is revealed to be the leader of a high-stakes gambling ring fueled by cafeteria leftover trades. You can find more details about this specific
: While Steve plays detective, Stan and Francine become obsessed with a pair of eccentric neighbors, leading to a surreal subplot about social status and the lengths they will go to to fit in with the "cool" couple. Feature: "The Smith & Wesson of School Safety"