An "unknown force" declares war against planet Earth when the United Nations disobeys warnings to cease and desist in its attempts at assembling the first satellite in the atmosphere.

Cooperating with the police in order to revenge his father's death, Frank joins a youth syndicate master-minded by the sadistic Alex. When members become suspicious, Frank must cooperate with the gang activities in order to prove his loyalty. Now personally involved and unable to contact the law or his girl friend, Frank's true identity is revealed to brutal leader whose anger he must now face. Meanwhile the selfish disloyalty of the boss is revealed and in bitter hatred the most trusting youth of the syndicate turns on the leader.