The head of the FBI explains that hippies were good, but that they have degenerated due to psychedelic painting, drugs, and becoming addicted to free love. Secret Agent Frank investigates Sandy, whose daughter has disappeared, apparently because of hippies.
| Actor | Role |
|---|---|
 Eric del CastilloFrank | Frank |
| DDinorah JudithEva | Eva |
 Juan OrolLarry | Larry |
| FFrancisco del BustoSgt. Cruz | Sgt. Cruz |
| EEl Tigre PérezNot listed | Not listed |
 Alfredo Wally BarrónLeonel | Leonel |
 Miguel HerreraDr. Morton | Dr. Morton |
| EEnrique del RíoNot listed | Not listed |
| RRicardo LimaNot listed | Not listed |
| CCecilio NobleNot listed | Not listed |
| IIvan CurielNot listed | Not listed |
| LLidia HernándezNot listed | Not listed |
| FFélix BlankNot listed | Not listed |
| RRogelio del CastilloNot listed | Not listed |
| AAlfonso CremataNot listed | Not listed |
| RRoberto HernándezNot listed | Not listed |
| LLuis LópezNot listed | Not listed |