In Colombia, mining engineer Rian Mitchell discovers Carrero, the lost emerald mine of the Conquistadors, but has to contend with notorious local bandit El Moro's gang and with coffee planter Catherine Knowland's love.
Stewart Granger
as Rian X. Mitchell
Grace Kelly
as Catherine Knowland
Paul Douglas
as Vic Leonard
John Ericson
as Donald Knowland
Murvyn Vye
as El Moro
José Torvay
as Manuel
Robert Tafur
as Father Ripero
Charlita
as Dolores
Joe Dominguez
as Jose
Nacho Galindo
as Officer Perez
Natividad Vacío
as Hernandez
Rico Alaniz
as Antonio
