A South American guerrilla, whose revolution is faltering, hijacks a ship carrying arms and holds all of the passengers hostage.
| Actor | Role |
|---|---|
 William ShatnerSteve Monroe | Steve Monroe |
 Michael ParksAntonio DeLeon | Antonio DeLeon |
 Lee GrantVirginia Monroe | Virginia Monroe |
 Frank SilveraGen. Salazar | Gen. Salazar |
 Victor JoryDr. Henry Merrill | Dr. Henry Merrill |
 Charles McGrawCapt. Humphreys | Capt. Humphreys |
 Louise SorelAlicia Salazar | Alicia Salazar |
 Barbara WerleMaggie Merrill | Maggie Merrill |
 Michael TolanReynaldo Solis | Reynaldo Solis |
 Stuart MargolinRico | Rico |
 Valentin de VargasColonel | Colonel |
 Woody ChamblissNot listed | Not listed |