Story: It's very simple but honestly that is fine.

A terrific literary drama and character piece that shows how the process of creating art can be seen differently by those doing it and those looking at it from the outside.

The film never slows down or bores, plunging from one harrowing sequence to the next.

By the time the dramatic fireworks start popping off, each one feels earned.

Say, did you get a good look at the Trilling Gang during the opening of the story when all those newspaper headlines blared the gang's robberies? In between stories, the gang looked like it had over twenty riders! That's a lot of bad guys to divvy up the loot with. If I were Bud Trilling (Don Costello), I think I'd have cut a few of those guys loose.The story starts out with a bank robbery in the town of Holbrook, with Hopalong Cassidy (William Boyd) and his pals Jimmy (Jimmy Rogers) and California (Andy Clyde) on hand as part of a Bar-20 cattle drive. Hoppy and a few of the town locals pull a move I don't think I've seen before - they block the exit out of town with a couple of wagons in the middle of the street. This made me wonder why the outlaws didn't turn around and go the other way, but just as well. They're put in the calaboose by Marshall Blane (Jack Rockwell), and Hoppy can return to the trail with his men.Meanwhile, Bud Trilling himself remains incognito as a well dressed businessman, and hangs around to help spring his top henchman Bert Rogan (Francis McDonald) and the rest of his men out of jail by passing him a weapon. From there on in, it's a see-saw game of the baddies and the Bar-20 crew gaining the upper hand. Trilling even impersonates Cassidy by warning Sheriff Sam Newhall (Forrest Taylor) that Hoppy and his men intend to steal his cattle! Well no need to tell you how this thing turns out. With the help of the sheriff's daughter (Eleanor Stewart), this time Hoppy's guys make a jailbreak and take it to the bad guys for a final showdown among the Alabama Hills of Lone Pine, California. It's a tribute to Hoppy's skill and ingenuity that after so many adventures, he's able to come out on top while all during the story, he spent a good deal of time with both hands tied behind his back.

This Hopalong Cassidy film Mystery Man has Hoppy dealing with the Bud Trilling gang. The title of the film comes from the fact that while we know that Trilling is actor Don Costello he's not known to anyone other than his gang. No wanted posters with likeness are circulated so consequently he can move around pretty freely.Bill Boyd, Jimmy Rogers, and Andy Clyde at the beginning of the film happen to be in town when the gang pulls a holdup at the bank and in a very thrilling gun battle they're captured and hauled away to jail. Costello frees them however and the rest of the movie is a running battle between the Bar 20 crew and the Trilling gang. Costello is a resourceful foe, but you know comes out on top.Costello certainly regretted he and the gang decided to diversify from holdups to cattle rustling.

This is a fair Hoppy movie. I bother to review it to point out one unusual thing. Virtually all of the Hoppy movies entail some kind of mystery or some clever way to flush out the bad guys, get the goods on them. ***Spoilers*** This Hoppy movie is very different! In this oater, after Hoppy helps capture the Trilling gang (but not Trilling himself, who is unknown outside of his gang) at the start of the movie, from there until the conclusion of the movie it is one long caper: the bad guys getting out of jail to rustle Hoppy's 1000-head of cattle being driven for sale at the Circle J, and Hoppy recapturing and losing the herd, etc.(1) The Trilling gang rustles Hoppy's herd by sneaking up to the cowboys' downtime camp, scattering the cowboys' horses and making off with the herd.(2) Hoppy and his men gather their horses, follow the herd, chase off the rustlers and regain the herd.(3) The rustlers pretend to be a posse of lawmen, get the drop of Hoppy, tie up Hoppy and his men at their hideout, and go off with the herd.(4) Hoppy and men escape the hideout, but before they can regain the herd, Trilling has pretended he is Hopalong, owner of the herd, and Trilling sics the local Sheriff on the real Hoppy and company, who are thrown in jail.(5) The Sheriff's daughter knows the truth, so she breaks the real Hoppy and crew out of jail, and they finally apprehend the Trilling gang.

Set in Holbrook in the 1880s, Hoppy is dressed all in black (usually a good sign, but not always). On the positive side, there's lots of action & gunfights (four in all), & the heroine is especially helpful (she's a Sheriff's daughter). On the negative side, Jimmy Rogers is as wooden as always, the comedy is not too funny, the plot seems rushed between horse chases, & most of all, there's no real sense of toughness from Hoppy. Altogether one of the more minor Hopalong Cassidy entries.I rate it 5/10.