Heart of the Rockies (1937)

The Cattlemen's Association has called in the Mesquiteers to find cattle rustlers. They get Tex Riley to pose as Stony so Stony can arrive posing as a wanted outlaw. This gets Stony into the gang of rustlers and he alerts Tucson and Lullaby as to the next raid. But Hartley is on hand and unknown to anyone is the rustler's boss and he joins the posse with a plan that will do away with the Mesquiteers.

The Three Mesquiteers convince a group of settlers to exchange their present property for some which, unbeknownst to our goodguys, is going to be worthless. They are captured before they can warn the ranchers.

The Mesquiteers capture a horse thief who escapes justice through a crooked judge. They gather signatures urging the governor to investigate but a friend with the petition is murdered. Stony is accused.

Will Parker has been destroyed by a local politician and now must steal to feed his family. He steals a steer from the Three Mesquiteers.

Talbot uses a phony land grant to rule thirteen million acres, taxing everyone heavily and evicting those who won't pay. The Three Mesquiteers becomes mysterious "night riders" to fight this evil.

When Professor Marsh disappears while searching for the lost city of Lukachukai, his daughter enlists the help of the Three Mesquiteers.

After gold shipments from a mining town have been hijacked, the three Mesquiteers buy a plane to fly the gold out. The owner of the shipping line brings in Eastern gangsters to thwart them.

Cattle are being routinely stolen from a local ranch, and suspicion centers on a local mountain family. But the Three Mesquiteers are wise to the criminals' deeds. But when a ranger is shot and Stony is framed for the crime, it's up to Lullaby and Tucson to prove his innocence.

In Kansas Terrors, Stoney and his saddle pal Rusty take a job delivering horses to a flyspeck Caribbean island. Here they join forces with Rico to topple the regime of a despotic commandante.

The Mesquiteers return to Texas after the Civil War to find Army carpetbaggers fighting the local bushwackers. They quickly learn that Capt. Hawks and his men are the culprits and join up with Morgan and his men.

17세기 전반. 태후비 마리 드 메디시스는 아들 루이 13세와 사이가 틀어졌을 때 스페인에 원조를 요청하는 대신 남프랑스의 영토를 지킨다는 조약문서에 서명했다. 태후비는 재상 리슐류에게 간택되어 막스경이 호위하여 가는도중 스페인의 스파이에게 살해되어 문서는 분실된다. 어느 날 밤 달타냥은 강에 빠진 맥스 경과 인연이 있던 카리나를 구해 돌보았지만 다음 날 그녀는 살해당해 달타냥이 살해 혐의를 받는다. 투옥된 달타냥을 구하기 위해 삼총사가 카리나의 시신을 조사하던 중 종이조각이 발견됐다. 아라미스는 과거 루이 13세의 쌍둥이 형제 필립 왕자를 모시던 프랑수아라는 청년과 약혼한 상태였다. 그러나 프랑수아는 프랑스를 점령하려는 일당에게 살해당했고 이후 그녀는 아라미스라 자칭해 복수의 기회를 노리고 있었다. 카리나가 남긴 막스 경의 편지에서 아라미스는 문서를 찾아 스위스로 향했다. 반면 탈옥에 성공한 달타냥은 동료 아토스, 포르투스 등과 아라미스를 돕기 위해 떠난다.

Nancy Evans, lovely circus owner, has a ranch that she's never visited, but for sentimental reasons won't sell to Mike Abbott. Her partners, secretly in league with Abbott, sabotage the circus to force Nancy to sell the ranch; instead, she goes there to live. Will her neighbors, the Three Mesquiteers, be a match for the secret swindlers? And what's so valuable about that run-down ranch anyway?

A crooked real estate manipulator sells worthless land on mortgage to flood refugees, then tries to profit by reselling the land to the state, committing murder in the process, as the Three Mesquiteers work to bring him and his gang to justice.

Commissioner Tredwell is the law of the land and he gets whatever he wants with the help of hired guns and lackey lawyer Conners. The only one who publicly stands up to Tredwell is Beecham of the Clarion. Beecham has his paper burned to the ground and when he starts a petition to make Wyoming a state, taking the power away from Tredwell, he is killed. But when Kansas Kate comes in to visit her son Conners, she sees what is going on and she takes over the paper and keeps the pressure on Tredwill. With this Conners has mixed emotions, but the boys do everything they can to protect Kate and the paper. Written by Tony Fontana

The Cherokee Strip is off limits to the Rangers, so that is where badman Lemar operates from. When the Rangers capture his brother and the jury sentences him to hang, Lemar starts killing the jurists. Then the scoundrels kidnap the Captain's daughter Doris... Written by Tony Fontana

A banker struggles to keep his bank solvent and his town from going bankrupt after the bank is robbed and all its money taken. The Three Mesquiteers ride into town and set out to help.

Stony's brother George has been accused of murder and the Mesquiteers have returned to prove his innocence. But they find that Harvey rules the town along with his stooge Sheriff Gray and that George won't get a fair trial.

The Mesquiteers try to help their friend build a telegraph system, despite a local newspaper editor's attempts to sabotage the lines.

Stony Brooke, Rusty Joslin and Rico, known as The Three Mesquiteers, return to Oklahoma at the close of the Spanish-American War, and are concerned that some of their wounded buddies have no prospects for a satisfactory future. When the government offers preferred homesteads in the newly-opened Oklahoma territory to war veterans, they send word for their pals to join them there. Once there, the veterans meet a hostile reception as the cattlemen resent the influx of "nesters" and are determined to drive them out. Mace Liscomb and his brother Orv plan not only to drive out the homesteaders, but to also double cross the cattlemen and gain exclusive titles to the range lands for themselves. Stony and his pals eventually show the honest cattlemen that there is room for the settlers and that both are fighting a common enemy. Written by Les Adams

Yet another fast-paced western featuring the "Three Mesqueteers," pulp writer William Colt McDonald's trio of sagebrush heroes, Lone Star Raiders finds Stony Brooke (Robert Livingston), Tucson Smith (Bob Steele) and Lullaby Joslin (Rufe Davis) defending elderly rancher "Granny" Phelps (Sarah Padden) from greedy neighbor Henry Martin (George Douglas).