A new diner is opening up across the street from Roseanne and Jackie's diner, and they are worried that it will spell the end for "The Lunch Box". To promote the new restaurant's grand opening, the owners hire Pat Harrington Jr., who played Dwayne Schneider from the 70's sitcom One Day at a Time (1975). When Roseanne discovers that they have a salad bar, and are serving loose meat sandwiches, she declares war. When adding a waffle bar, staying open late, and dressing up the menu doesn't seem to work, Roseanne decides to sabotage the new diner with raw fish, only to wind up stuck in an exhaust vent over a stove. The cast of Stomp does a dance at the diner.