The Quest for Asa Janin is unquestionably one the truly great episodes of the entire series. It's an extremely gripping story with a great cast, and to say this one fires on all 8 cylinders is an understatement. In an interview, cast member Roger Ewing referred to series writer Paul Savage as "the heart and soul of Gunsmoke". This episode vindicates that statement completely, and is one of Savage's finest accomplishments.
The thing is, it's never listed on any lists of the "best" episodes in the series, and yet is clearly deserved of the accolades. I can't help but think that the folks compiling said "lists" just haven't seen this one.
No need to rehash the details, Matt goes on a long search for a killer to clear the name of a convicted friend. It's a long hard road with many obstacles, but Dillon is nothing if not fiercely dedicated to the greater good. In years past, I had a thread on the Gunsmoke forums here entitled "Dillonisms", where I posted quotes or traits that defined Matt Dillon's character. One of these quotes is appropriate for this review: "I'm a lawman" (could be supplanted by "it's my job"), where Dillon states his determination to do what his job demands. As Dave Engels says to Matt as he's leaving for Hays City, that job can be difficult at times. This is especially true when Dillon knows deep down the man he must deliver to the gallows is innocent. But the episode shows just what Matt Dillon is made of, when the resolve to right a wrong and prevent an injustice is pushed to the extreme.
The twists and turns awaiting the viewer are frequent...and the last scene of the show is probably one of the most poignant scenes in the history of the series' long run. As Matt rides away and you hear the final voice-over, it's guaranteed to choke up even the stoutest personality.
Quest is one of those shows that will stay with a viewer long after the credits run. It's the kind of story that really made Gunsmoke such a brilliant series.