S3·E7 Melissa

The cheif is awarded man of the year, and Nell tries to fix him up with a woman named Melissa. What he doesn't know is that she is a man, who was once Officer Simpsons karate instructor in St. Luis. When she knows it has gone too far, Melissa confesses to Nell, who has to tell the cheif she set him up with a man, which ends in havoc.