|"A Forgotten Yesterday"|
|Airdate:||May 17, 2003|
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"Masterstroke of Malevolence"
| Next Episode|
"The Nineteenth Hole is a Shallow Grave"
A Forgotten Yesterday was the fourteenth episode of Fillmore! to be produced and the thirteenth to air. It was originally broadcast on May 17, 2003.
Term Papers goes missing at X, leading Fillmore and Third to find a delinquent to help them crack the case. Fillmore turns to his old partner in crime Sonny Lombard, who brings up some hopeful leads. However Ingrid doesn't trust Sonny leading and eventually Fillmore has to make a tough choice: follow the rules of the Safety Patrol or go against the rules.
- Sonny is one of three characters from Fillmore's past that is introduced throughout the series. The other two being Penny and Wayne.