Season 9 - Episode Guide

After hearing complaints about rowdy customers, Bryan, owner of Corbin Bowling Center in Tarzana, Calif., contacts Charles for help. Mystery Diners Eliot and Kendall go undercover and discover the staff is condoning reckless behavior.

Fearing that his new baker is taking artistic license with customer cake orders, Lenny, owner of Lenny's Deli in Los Angeles, asks Charles to investigate. Mystery Diners Kiel and Kendall go undercover and discover an even bigger problem inside the deli. 

Tired of being mistreated, the wait staff of a California restaurant contacts Charles to do a reverse sting on their employer. Mystery Diners Amanda and Eliot go undercover and uncover what's really going on inside the kitchen.

Damian, owner of Doffo Winery in Temecula, Calif., contacts Charles after noticing missing wine barrels. Mystery Diners Jamie and Kendall go undercover to see which employees are responsible. 

Sonny and Sage, owners of Hot Red Bus near Los Angeles, contact Charles after hearing rumors that their restaurant is open on the one day it's supposed to be closed. Mystery Diner Kendall goes undercover to see what's going on when the doors are locked.

Having already been helped by Mystery Diners in the past, Nico, owner of Capo's Speakeasy in Las Vegas, contacts Charles to help with a personal problem at his new home. Rob and Kiel go undercover to see if the private chef is cooking up trouble. 

Kristy and Sarah, owners of Moviesets in New Orleans, are concerned about theft at their prop house-turned-event center. Charles sends in Mystery Diners Rob and Ingrid to book a wedding reception and they discover more than one event is taking place. 

Cara is concerned about an unhealthy competition between her two New Orleans restaurants, Toast and Tartine. Mystery Diners Shelby and Nicole go undercover and discover that a problem employee, previously busted by Charles, is on the owner's staff.

When Roland, owner of Marigny Brasserie in New Orleans, notices an influx of rowdy tourists at his "locals bar," he contacts Charles to investigate. Mystery Diners Nicole and Eliot go undercover to see who's profiting from the new customers. 

After hearing rumors that his restaurant's signature cocktail is being served at other bars, Daniel, owner of Victory in New Orleans, contacts Charles for help. Mystery Diners Patrick and Ingrid go undercover and discover an even bigger problem inside. 

Glen and Susan, the owners of the Gateway Restaurant and Lodge located near Sequoia National Park in California, contact Charles after hearing complaints of unauthorized parties taking place inside their vacant cabins. Mystery Diners Jamie and Kendall go undercover to see which staff members are involved. 

Dave, owner of Fillmore and Western Railway, in Fillmore, Calif., is concerned about missing supplies and rumors of unauthorized passengers during his train's "dinner theater" service. Charles sends in Mystery Diners Shelby and JR to see who the train robbers really are. 

After noticing over $4,000 missing from her office safe, Keeli, owner of Fuzion in Huntington Beach, Calif., believes one of her managers is responsible. Mystery Diners Kiel and Kendall go undercover to collect fingerprint samples from all the suspects. 

Mystery Diners counts down the Top 10 craziest schemes caught on videos from operating unauthorized businesses to raising money for bogus charities, having people pose as celebrities, faking injuries, and even creating fake employees.

Mystery Diners counts down the series' Top 10 greatest moments in catching employee theft involving stolen food, alcohol, supplies, and money