Crooks break into a chemical company to steal a formula for food preservative and, as Ernie investigates, motives become apparent, implicating various suspects.
| Actor | Role |
|---|---|
| KKevin McKeonErnie Boylan | Ernie Boylan |
| SScott AsheOfficer Louis | Officer Louis |
 Frank CollisonRaddish | Raddish |
| SSteven J. CoyleJoe | Joe |
| TTommy FlanniganTruck Driver | Truck Driver |
| KKarl HofeltRunner | Runner |
| MMartin KauperSignpainter | Signpainter |
| DDana Kelly, Jr.Harold Hankin | Harold Hankin |
| RRobert KrileyMr. Meadows | Mr. Meadows |
| JJoreen LongSecretary | Secretary |
 Vince MelocchiTed Dowling | Ted Dowling |
| JJoseph Karr O'ConnorPoliceman | Policeman |
| BBruno PatrickSammy | Sammy |
| BBiff ReganShorty | Shorty |
| CCharles RickardBob | Bob |
| JJohn RunnettePoliceman | Policeman |
| TTodd SwiftNot listed | Not listed |
| LLoramae TaylorMother Dowling | Mother Dowling |
| KKurt WahlnerEddie the Weasle | Eddie the Weasle |
| JJenepher WhiteCarolyn Dowling | Carolyn Dowling |