Professor C.H. Arles finds himself obsessed with a string of mysterious burglaries - and with the enigmatic cat burglar behind them.

CH Arles departs from the shores of England, bound for adventure and mystery on a tropical island!

They say all good things must come to an end, but does this hold true for overlooked Los Angeles police officers?

Will a lull in business cause The Oregon Twins to take on a case that’s a little less… than PURR-fect?

C.H. Arles is on a crusade for justice when a resident of a North England village is put on trial for witchcraft!

A cartoonishly complex line of inheritance leads Jim Buckles down the avenues of untimely death, sudden disappearance... and children's television!

After a tennis trophy is stolen from the Greensleeves Middle School trophy case, the Oregon Twins are called to the Principal’s Office... I'm sure these two things are unrelated.

After a crying mother comes to her for help, Myrna Sinclair finds herself caught in between two warring groups as she searches for a missing 14-year-old boy. 

As Professor C.H. Arles’s students sweat over his famously difficult final exam, Arles himself is faced with the disappearance of his oldest friend...

Jim Buckles is called to the scene of an altercation between a mother and son over the inheritance of an allegedly cursed suburban bungalow...

Sue's broken leg splits up the Oregon Twins as Sally heads off to camp while Sue stays home.  Can they solve a mystery even while apart?

After waking up in a slimy cellar, Myrna Sinclair finds herself trapped in a deadly game at the hands of a madwoman! 

A trip to an an old friend’s hometown finds C.H. Arles embroiled in yet another deadly hunt for the truth.

Tragedy in tinsel town! Jim Buckles and aging actress Sylvia Stockton investigate a string of mysterious deaths while trying to save the starlet they think is next on the chopping block! But will they solve the case in time for a Hollywood ending? 

At a school essay contest, the Oregon Twins must solve a case of academic appropriation, of intellectual infringement, of purported plagiarism!

A twisted turn of fate lands Myrna Sinclair behind bars for a crime she did not commit. Can she find the culprit and save the would-be victim before time runs out?

CH Arles's relaxing train ride is rudely interrupted by his American arch-rival! And when two master-detectives meet, murder is surely soon to follow…

The suspicious death of a police officer has detective Jim Buckles racing against the clock! 

Take a trip down DuoMemory ChesterLane to our pilot episode from seven years ago!

After the sudden death of an up-and-coming theatre star, Myrna Sinclair must delve into the back-stabbing back-stage world of show biz.

A case-solving dry spell for the Oregon Twins makes a mysterious mash note all the more enticing!

While vacationing in London, a newspaper profile makes Professor C.H. Arles an instant sleuthing celebrity, and he begins attracting all sorts of tedious cases…

The grief of self-described widow Jennifer Cole has Jim Buckles investigating the murder of a man who never existed.

Gather your loved ones about the Yule Log and join the DuoTeam ChesterFriends, broadcasting to you from the Holiday ChesterHeadquarters, for the first annual Duotang Chesterfield Special Holiday Thingtacular! Featuring three short holiday amuse-bouche from the Duotang ChesterTeam, an exciting announcement for the year to come, and at the end of the special a brand new detective!

The season’s first away game pits the Oregon Twins against their two toughest opponents: Little Ladies' League star pitcher Angelina Palmer…. and athletic sabotage!

While attending an exclusive pre-opening party at the Empire State building, Myrna Sinclair’s evening acquires an…. explosive demeanour.

C.H. Arles tries his hardest not to investigate mysterious events while on his vacation at Massacre Pines. 

Follow the investigation of Junior Detective Jim Buckles as a battle between two titans of the LA auction scene turns deadly.

The Oregon Twins are opening their detective agency for business! But little do they know that the first crime they investigate will be a crime… against themselves.

Heiress sleuth Myrna Sinclair is hot on the trail of the College Kidnappers, a group that nabs big name mobsters for ransom.