Peter is inspired by a Veterans Day parade to become more patriotic, and starts an anti-immigration group at his work. However, he finds out from his mother that he was born in Mexico and is an illegal immigrant. After failing an immigration test, Peter is forced to work as an illegal immigrant in his father in-laws mansion.
Peter grows a mustache after reading Mustache Aficionado and is mistaken as a fireman when a local fast food restaurant catches on fire. Peter loses his mustache in the fire but is able to save the owner and his awarded with a lifetime supply of hamburgers. After eating too many hamburgers, Peter has a stoke and vows to expose the restaurant.