Singapore. Following the mysterious disappearance of several Marines on leave, the U.S. Secret Service appoints young Art Smith to lead the investigation. Four volunteers decide to assist him in his dangerous undertaking, and prepare to act as bait for the kidnappers.
| Actor | Role |
|---|---|
 Marika GreenMonika Latzko | Monika Latzko |
 Terry DownesGruber | Gruber |
 Sean FlynnCaptain Art Smith | Captain Art Smith |
 Marc MichelCaptain Kevin Gray | Captain Kevin Gray |
 Dennis BerryNot listed | Not listed |
| BBernard MeusnierNot listed | Not listed |
| PPeter GayfordNot listed | Not listed |
 Andrea AureliNot listed | Not listed |
| JJessy GreekNot listed | Not listed |
| TTrudy ConnorNot listed | Not listed |
| WWilliam BrixNot listed | Not listed |
| FFoun-SenNot listed | Not listed |
| IIsmail BossNot listed | Not listed |
| SSee Foon ChanNot listed | Not listed |
| LLim Hong ChinNot listed | Not listed |
| GGérard GuitNot listed | Not listed |
| RRahaman HamidNot listed | Not listed |
| RRusseleyNot listed | Not listed |