 The second of five "Beach Party" movies where Julie (Luciana Paluzzi) a wealthy contessa managed by S.Z. Matts (Buddy Hackett), wants muscle-man Flex Martin (Rock Stevens a.k.a. Peter Lupus) trained by Jack Fanny (Don Rickles), for her own - until she meets Frankie (Frankie Avalon). Frankie s girl Dee Dee (Annette Funicello) gets rightfully jealous and plans to avenge the Frankie-stealing contessa. Peter Lorre (in his last film) appears briefly as Mr. Strangdour, king of the strongmen.