Editing Mathnet (section)

===Season 4 (1991)===
{{Episode table |background=#66CC99 |overall=5 |season=5 |title=29 |director=18 |airdate=25 |prodcode=18 |episodes=
{{Episode list
| EpisodeNumber = 20
| EpisodeNumber2 = 1
| Title = The Case of the Unnatural
| DirectedBy = Jesus Salvador Treviño
| OriginalAirDate = {{Start date|1991|9|30}} – {{Start date|1991|10|4}}
| ProdCode = 40121–40125
| ShortSummary = ''George's new partner Pat Tuesday is introduced here''. In a parody of ''[[The Natural (film)|The Natural]]'', a [[baseball]] prospect is kidnapped and replaced by a mechanical imposter. The real player is eventually found and the [[robot]]'s creator is apprehended.
| LineColor = 66CC99
}}
{{Episode list
| EpisodeNumber = 21
| EpisodeNumber2 = 2
| Title = Despair in [[Monterey Bay]]
| DirectedBy = Jesus Salvador Treviño
| OriginalAirDate = {{Start date|1991|10|7}} – {{Start date|1991|10|11}}
| ProdCode = 40101–40105
| ShortSummary = The Despair Diamond from the "Trojan Hamburger" case is stolen again, this time by a [[gentleman thief]].  The Mathnetters return to Los Angeles to solve the case.
| LineColor = 66CC99
}}
{{Episode list
| EpisodeNumber = 22
| EpisodeNumber2 = 3
| Title = The Case of the Calpurnian Kugel Caper
| DirectedBy = Jesus Salvador Treviño
| OriginalAirDate = {{Start date|1991|10|14}} – {{Start date|1991|10|18}}
| ProdCode = 40071–40075
| ShortSummary = A [[counterfeit money|counterfeiter]] is ruining the [[monetary unit]] of a tiny [[Monaco]]-like [[monarchy|kingdom]] ruled by a teenager.  The ruler would rather be a [[game show host]] than a king, evident by his desires to be one and his obsession with the genre.
| LineColor = 66CC99
}}
{{Episode list
| EpisodeNumber = 23
| EpisodeNumber2 = 4
| Title = The Case of the Galling Stones
| DirectedBy = Bill Schreiner
| OriginalAirDate = {{Start date|1991|10|21}} – {{Start date|1991|10|25}}
| ProdCode = 40111–40115
| ShortSummary = Pat Tuesday is suspected of stealing an expensive bracelet. But then, she and George find out that there's more to this mystery than a stolen bracelet. Finally they learn that a dictator of a small country framed Pat and stole jewels for an icon.
| LineColor = 66CC99
}}
{{Episode list
| EpisodeNumber = 24
| EpisodeNumber2 = 5
| Title = The Case of the Poconos Paradise
| DirectedBy = Charles S. Dubin
| OriginalAirDate = {{Start date|1991|10|28}} – {{Start date|1991|11|1}}
| ProdCode = 40091–40095
| ShortSummary = Vacationers to the [[Pocono Mountains|Poconos]] and other places are being robbed.  A woman who owns a mail company in [[Bayonne, New Jersey]], is the suspect.
| LineColor = 66CC99
}}
{{Episode list
| EpisodeNumber = 25
| EpisodeNumber2 = 6
| Title = The Case of the Purloined Policies
| DirectedBy = Charles S. Dubin
| OriginalAirDate = {{Start date|1991|11|4}} – {{Start date|1991|11|8}}
| ProdCode = 40081–40085
| ShortSummary = Someone is bankrupting an insurance company with an old-fashioned insurance fraud. A bike gets stolen and a new one has to be made. Finally, the chief manages to find the culprit by identifying his handwriting.
| LineColor = 66CC99
}}
}}