China Valdes joins the Cuban underground after her brother is killed by the chief of the secret police, Ariete. She meets and falls in love with American expatriate Tony Fenner. Tony develops a plan to tunnel under the city's cemetery to a plot owned by a high official, assassinate him, and blow up the whole Cuban hierarchy at the ensuing state funeral. Together with a band of dedicated revolutionaries, they begin digging.
| Actor | Role |
|---|---|
 Jennifer JonesChina Valdés | China Valdés |
 John GarfieldTony Fenner | Tony Fenner |
 Pedro ArmendárizArmando Ariete | Armando Ariete |
 Gilbert RolandGuillermo Montilla | Guillermo Montilla |
 Ramon NovarroChief | Chief |
 Wally CassellMiguel | Miguel |
 David BondRamón Sánchez | Ramón Sánchez |
 José PérezToto | Toto |
 Morris AnkrumM. Seymour | M. Seymour |
 Lelia GoldoniConsuelo Valdés | Consuelo Valdés |
 John HustonSeñor Muñoz | Señor Muñoz |
 Roberta HaynesLolita Valdes | Lolita Valdes |
 Mimi AgugliaMama | Mama |
 Ted HechtEnrico | Enrico |
 Loretta RussellLouisa Contreras | Louisa Contreras |