After noticing lackluster dinner sales and a dip in bottle service, Freddy and Abdi of Supperclub in Los Angeles contact Charles Stiles for help. When he sends in Mystery Diners Eliot and Felicia, they discover the staff is using a street vendor to line their pockets.
Before investing his life savings in a new Russian restaurant, an aspiring restaurateur asks Charles Stiles to investigate the Russian chef he plans to go into business with. Mystery Diners Rob and Eva go undercover and discover an elaborate con.
After receiving several customer complaints about her meal delivery service, Cynthia contacts Charles Stiles for help. He sends in Mystery Diners Patrick and Hal, who uncover a bigger problem inside her kitchen.
Luca, owner of Riemma Kitchen Warehouse, asks Charles Stiles for help after his customers find food inside the factory-sealed appliances they just purchased. Mystery Diner Jamie goes undercover and discovers a large-scale operation.
Nirav, owner of Smokin' Barrel in Hoboken, N.J., contacts Charles Stiles to investigate after noticing a decline in sales every holiday season. Mystery Diners Dennis and Jamie go undercover and discover a suspicious sidewalk solicitor.
Vlane, the owner of Action Burger in Brooklyn, contacts Mystery Diners to investigate missing comic books at his comic book-themed restaurant. Charles Stiles sends in Jamie, who discovers an employee abusing their powers for evil.
After hearing complaints about her valet service, Kitty of Breuckelen Colony in Brooklyn contacts Charles Stiles for help. Mystery Diners Daniel and Jamie go undercover and discover an unauthorized car washing service.
Concerned about vandalism at his new restaurant location, which is currently under construction, Manny of the Spanish Potato Grill in Brick, N.J. reaches out to Mystery Diners for help. Charles Stiles sends in Megan and Daniel, who learn the restaurant is being sabotaged from the inside.
Brother-sister owners Richard and Marilyn of Langosta Lounge in Asbury Park, N.J. contact Charles Stiles after noticing a discrepancy in their lobster supply. Mystery Diners Megan and Natale go undercover to discover where the lobsters are going.
After receiving deals that are too good to be true, Tony, the owner of Rivoli's in Tom's River, N.J., believes his new meat purveyor is selling him stolen goods. Charles Stiles sends in Mystery Diner Danny, who has trouble infiltrating the restaurant staff.
After hearing rumors that their songwriting contest is rigged, Rose and Tom of Belcourt Taps in Nashville contact Charles Stiles for help. 80s pop star Tiffany goes undercover as a Mystery Diner to investigate.
Steve, owner of Nashville Street Tacos and The Stillery in Nashville, believes his part-time apartment above his restaurant is being used while he's out of town. Charles Stiles sends in Mystery Diners Jamie and Brooke to investigate.
In this special episode of Mystery Diners, Charles Stiles and his undercover team risk it all to bust the boss! For the first time ever, the sting is conducted from inside the restaurant to see if the horrifying accusations against the boss are true.