| Director | Richard Brooks |
|---|---|
| Genre | Western film |
| Runtime | 117 min |
| Country | United States |
| Box office | $19.5 million |
In the final years of the Mexican Revolution, American rancher J.W. "Joe" Grant hires four men, who are all experts in their respective fields, to rescue his kidnapped wife, Maria, from Jesús Raza, a former revolutionary leader-turned-bandit. Henry "Rico" Fardan is a weapons specialist, Bill Dolworth is an explosives expert, Hans Ehrengard is the horse wrangler, and Jake Sharp is a traditional Apache scout, skilled with a bow and arrow. Fardan and Dolworth, having both fought under the command of Pancho Villa, have a high regard for Raza as a soldier, but have no qualms about killing him.
After entering Mexico, the professionals witness soldiers on a government train being massacred by Raza's small army. They follow the captured train to the end of the line. After the bandits leave, they take the train before moving on to the camp, where they observe Raza and his followers — including a female soldier, Chiquita (who was once in a relationship with Dolworth). At nightfall, Fardan infiltrates the camp, but is stopped from killing Raza in his quarters after seeing Maria, Grant's kidnapped wife, about to willingly make love to him. Dolworth announces, "We've been had."
After bringing Maria back to the train, the professionals begin a shootout when they find it has been retaken by the bandits. Pursued by Raza and his men, the professionals are forced to take refuge in nearby canyon lands. That night, Maria reveals that they haven't rescued Grant's "kidnapped wife" but rather, Raza's lover — that Grant had bought her in an arranged marriage, from which she escaped at the earliest opportunity to return to her true love in Mexico.
The following day, Maria rides off through the narrow canyons to rejoin Raza, but Dolworth sets off explosives he had planted in the canyon walls, which collapse and close off the canyon, preventing her escape. As Raza and his remaining men close in, Dolworth volunteers to stay behind to allow the other professionals to escape with Maria. In the ensuing fight, Raza is wounded and captured, and Dolworth is almost killed by a dying Chiquita, whose pistol has run out of bullets.
Grant and his men meet the professionals (with Raza and Maria) at the US border. Grant tells Fardan that their contract has been satisfactorily concluded. He then orders one of his men to kill the wounded Raza. Before he can fire, Dolworth shoots the guns from his hand. The other professionals step in to protect Maria and Raza. They collect the wounded Raza, laying him on the back of a horse-drawn wagon with Maria at the reins, and send both back to Mexico.
Grant angrily turns to Fardan and says, "You bastard!", to which Fardan retorts: "Yes, sir, in my case an accident of birth. But you, sir, you're a self-made man." The professionals then ride off, following the wagon across the border to Mexico.