Yul Brynner, who reprises his role as Chris Adams, is the sole returning cast member from the original film, while Robert Fuller, Julián Mateos and Elisa Montés replace Steve McQueen, Horst Buchholz and Rosenda Monteros as Vin Tanner, Chico and Petra respectively.

The film was written by Larry Cohen and directed by Burt Kennedy, and features Warren Oates, Claude Akins, Jordan Christopher and Virgílio Teixeira.

Among the captured farmers is Chico, who years before was one of seven hired gunslingers responsible for ridding the village of a tyrannical bandit, Calvera.

To replace the deceased members of the group, Chris buys the release of Frank (a taciturn gunman) and Luis (a famous bandit), held in the local jail, and recruits Colbee, a ladies' man and deadly gunman, and Manuel, a young cockfighter.

In a surprise attack, the six gunmen force Lorca's men to leave, and prepare for a counterattack with Chico.