Drive-Thru Drama: Byron becomes suspicious when he notices a drop in customers at his restaurant. Charles sends in Kiel and Eliot, who uncover a problem with the drive-thru staff. (S10 Ep13)
Street Vendor Violation: After a dip in sales, Freddy and Abdi of LA's Supperclub need help. The Mystery Diners discover that the staff is using a street vendor to line their pockets. (S11 Ep1)
From Russia without Love: An aspiring restauranteur asks Charles to investigate his potential chef and business partner. The Mystery Diners go undercover and discover an elaborate con. (S11 Ep2)
Steals on Wheels: After receiving several customer complaints about her meal delivery service, Cynthia contacts the Mystery Diners for help. They uncover a bigger problem inside her kitchen. (S11 Ep3)
Secondhand Scam: Luca asks Charles for help after his customers find food inside the factory-sealed appliances they just purchased. Mystery Diner Jamie discovers a large-scale operation. (S11 Ep4)
Unhappy Holidays: Nirav, owner of Smokin' Barrel, contacts Charles Stiles after noticing a decline in sales every holiday season. The Mystery Diners discover a suspicious sidewalk solicitor. (S11 Ep5)
The Spoils of Victory: After hearing rumours of his restaurant's signature cocktail being served at other bars, Daniel contacts Charles who discovers an even bigger problem. (S9 Ep10)
Cabin Fever: Glen and Susan, owners of the Gateway Restaurant and Lodge, contact Charles after hearing complaints of unauthorised parties taking place inside their vacant cabins. (S9 Ep11)
Train Robbery: Dave, owner of Fillmore and Western Railway, is concerned about missing supplies, and rumours of unauthorised passengers during his train's dinner theatre service. (S9 Ep12)
Dusting for Prints: After noticing over $4,000 missing from her office safe, Keeli, owner of Fuzion in Huntington Beach, California, believes one of her managers is responsible. (S9 Ep13)
Comic Book Caper: Vlane, owner of Action Burger, contacts Mystery Diners to investigate missing comic books at his comic-themed restaurant, to find an employee abusing their powers for evil. (S11 Ep6)
Vicious Valets: After hearing complaints about her valet service, the owner of Breuckelen Colony contacts the Mystery Diners for help. They discover an unauthorised car washing service. (S11 Ep7)
Venue Vandals: Concerned about vandalism, the owner of the Spanish Potato Grill reaches out to Mystery Diners. The team learn that the restaurant is being sabotaged from the inside. (S11 Ep8)
Lobster Looting: Brother-sister owners have noticed a discrepancy in their lobster supply at Langosta Lounge. With the help of Charles Stiles, they'll discover where the lobsters are going. (S11 Ep9)
Skating on Thin Ice: After noticing missing food and merchandise, the owners of Epic Rollertainment in Murrieta, California, contact Charles for help. (S10 Ep12)
Tour Bust: Danny and his son Danny Jr own the Star Cafe and Star Coaches in Atlanta. They are concerned about missing food in their kitchen and a rise in fuel expenses on their tour buses. (S10 Ep11)
Red Ink: Uche, owner of The Anchor Bar and Tattoo, contacts Charles after noticing a drop in food and tattoo sales. Mystery Diners go undercover to see if the two problems are related. (S10 Ep10)
History Mystery: When Lee, owner of Old Vinings Inn hears rumours of unauthorised Civil War tours taking place inside his historical restaurant, he contacts Charles to investigate. (S10 Ep9)
Too Many Tourists: Roland, owner of Marigny Brasserie has noticed an influx of rowdy tourists at his 'locals' bar'. He contacts Charles to investigate who is profiting from the new customers. (S9 Ep9)
Mystery Wedding: Kristy and Sarah are concerned about theft at their centre. Charles sends Rob and Ingrid to book a wedding reception, and they discover more than one event is taking place. (S9 Ep8)
Repeat Offender: Cara is concerned about unhealthy competition between her two restaurants. Mystery Diners go undercover and discover one employee was busted by Charles at another location. (S9 Ep7)
Private Chef Sting: Nico contacts Charles to help him again, but this time with a personal problem at home. Rob and Kiel go undercover to see if Nico's private chef is cooking up trouble. (S9 Ep6)
Missing Links: Charles discovers a bigger problem inside the dining room while investigating complaints about non-members playing for free at Emerald Hills Golf Course in Hollywood, Florida. (S10 Ep8)
Unhappy Hour: Charles sends in Patrick and Tina to see how uninvited guests are gaining access to a free happy hour at Moreno's Cuba Cafe in Miami Beach, Florida. (S10 Ep7)
Hamburger Burglar: Fearing their burger recipe is being given away, the owners of the Latin House contact Charles. Jamie and Estefanie find out if there are any moles inside their warehouse. (S10 Ep6)
Extracurricular Activities: Eliot and Domenica enroll as students at The Real Food Academy. They soon discover the classroom is being used for personal business by the instructors. (S10 Ep5)
Art Show Sting: After noticing discrepancies with the catering company she uses for her art shows, Patricia contacts Charles. Jamie and Brianna discover a problem with the assistant curator. (S10 Ep2)
Partner Problems: Former client Jaime contacts Charles to help determine if he should invest in a failing California restaurant. Mystery Diners discover the current owner isn't being honest. (S10 Ep1)
Dusting for Prints: After noticing over $4,000 missing from her office safe, Keeli, owner of Fuzion in Huntington Beach, California, believes one of her managers is responsible. (S9 Ep13)
Train Robbery: Dave, owner of Fillmore and Western Railway, is concerned about missing supplies, and rumours of unauthorised passengers during his train's dinner theatre service. (S9 Ep12)
Red Hot Mess: The owners of Hot Red Bus near LA contact Charles after hearing that their restaurant is open on the one day it should be closed. Mystery Diner Kendall goes undercover. (S9 Ep5)
Barrel of Monkeys: Damian, the owner of Doffo Winery, contacts Charles after noticing wine barrels missing from stock. Mystery Diners Jamie and Kendall go undercover. (S9 Ep4)
Very Bad Bosses: Tired of being mistreated, the staff of a California restaurant contacts Charles to do a reverse sting on their employer. Mystery Diners Amanda and Eliot go undercover. (S9 Ep3)
The Spoils of Victory: After hearing rumours of his restaurant's signature cocktail being served at other bars, Daniel contacts Charles who discovers an even bigger problem. (S9 Ep10)
Too Many Tourists: Roland, owner of Marigny Brasserie has noticed an influx of rowdy tourists at his 'locals' bar'. He contacts Charles to investigate who is profiting from the new customers. (S9 Ep9)
Mystery Wedding: Kristy and Sarah are concerned about theft at their centre. Charles sends Rob and Ingrid to book a wedding reception, and they discover more than one event is taking place. (S9 Ep8)
Repeat Offender: Cara is concerned about unhealthy competition between her two restaurants. Mystery Diners go undercover and discover one employee was busted by Charles at another location. (S9 Ep7)
Private Chef Sting: Nico contacts Charles to help him again, but this time with a personal problem at home. Rob and Kiel go undercover to see if Nico's private chef is cooking up trouble. (S9 Ep6)
Red Hot Mess: The owners of Hot Red Bus near LA contact Charles after hearing that their restaurant is open on the one day it should be closed. Mystery Diner Kendall goes undercover. (S9 Ep5)
Barrel of Monkeys: Damian, the owner of Doffo Winery, contacts Charles after noticing wine barrels missing from stock. Mystery Diners Jamie and Kendall go undercover. (S9 Ep4)
Very Bad Bosses: Tired of being mistreated, the staff of a California restaurant contacts Charles to do a reverse sting on their employer. Mystery Diners Amanda and Eliot go undercover. (S9 Ep3)
Deli Drama: The owner of Lenny's Deli in LA asks Charles to investigate a baker who he fears is taking license with cake orders. Mystery Diners Kiel and Kendall go undercover. (S9 Ep1)
Bad Credit: When Chef Chai, owner of his namesake restaurant in Honolulu, notices multiple ticket voids, he contacts Charles Stiles for help. (S8 Ep13)
Fyre on the Beach: After noticing discrepancies in sales, Allen, owner of ShoreFyre, contacts Charles Stiles to investigate. He discovers a related problem with the surf shop next door. (S8 Ep12)
Hawaiian Club Crashers: After hearing complaints about non-members attending members-only events, the general manager of Hawaii Yacht Club calls Charles Stiles for help. (S8 Ep11)
Deli Drama: The owner of Lenny's Deli in LA asks Charles to investigate a baker who he fears is taking license with cake orders. Mystery Diners Kiel and Kendall go undercover. (S9 Ep1)
Bad Credit: When Chef Chai, owner of his namesake restaurant in Honolulu, notices multiple ticket voids, he contacts Charles Stiles for help. (S8 Ep13)
Fyre on the Beach: After noticing discrepancies in sales, Allen, owner of ShoreFyre, contacts Charles Stiles to investigate. He discovers a related problem with the surf shop next door. (S8 Ep12)
Hawaiian Club Crashers: After hearing complaints about non-members attending members-only events, the general manager of Hawaii Yacht Club calls Charles Stiles for help. (S8 Ep11)
Deep Sea Delivery: When Angie, the owner of Cha Cha Cha Salsaria, hears rumours of an unauthorised boat delivery service, she contacts Charles Stiles to investigate. (S8 Ep10)
Local Celebrities: Fearing the staff's getting carried away with the digital shorts they produce to promote the restaurant, the owners of Amalfi's contact Charles Stiles for help. (S8 Ep8)
Food Cart Catastrophe: When the owners of A La Carts Food Pavilion in Portland hear complaints from their tenants about the new manager, they contact Charles Stiles to investigate. (S8 Ep7)
Behind the Eight Ball: Kent, owner of Uptown Billiards in Portland, believes the social media expert he hired to promote his restaurant isn't doing an adequate job. (S8 Ep6)
Robbed Kabobs: After noticing a discrepancy in supplies, the owners of Dar Salam fear a new Iraqi food cart that's competing with their restaurant is related to the problem. (S8 Ep5)
Deep Sea Delivery: When Angie, the owner of Cha Cha Cha Salsaria, hears rumours of an unauthorised boat delivery service, she contacts Charles Stiles to investigate. (S8 Ep10)
Local Celebrities: Fearing the staff's getting carried away with the digital shorts they produce to promote the restaurant, the owners of Amalfi's contact Charles Stiles for help. (S8 Ep8)
Food Cart Catastrophe: When the owners of A La Carts Food Pavilion in Portland hear complaints from their tenants about the new manager, they contact Charles Stiles to investigate. (S8 Ep7)
Missing Memorabilia: The owners of Fenders Moto Cafe and Brew Pub call Charles Stiles when they notice some of their valuable motorcycle memorabilia has gone missing. (S8 Ep4)
Poaching Profits: Fearing that someone on his staff is using restaurant supplies to operate a competing catering company, Lenny contacts Charles Stiles for help. (S8 Ep3)
Employee Discount: Andy believes discrepancies at both his wine shop and restaurant are somehow related. Charles Stiles sends in Mystery Diners Destiney and Rob to investigate. (S8 Ep2)