Flipper ist in Gefahr! Es scheint unvermeidlich, daß Sandy seinen Delphin-Freund abgeben muß. Verzweifelt flüchtet Sandy auf die hohe See. Doch die beiden geraten auf eine Insel, auf der moderne Piraten ihr Unwesen treiben.

This 1964 sequel to the 1963 box-office hit Flipper is unnecessarily melodramatic at times, but at least it isn't a cookie-cutter imitation of the original. Suzy the Dolphin returns to the "male" role of the superintelligent Flipper, while Luke Halpin reprises the role of Sandy Ricks. This time, Flipper rescues a British family in the Bahamas, who are being held for ransom. Brian Kelly takes over from the first film's Chuck Connors as Ranger Porter Ricks, a role he'd continue to play in the long-running (1964-67) Flipper TV series.

El famoso delfín y su amigo Sandy viajan a las Bahamas, donde se enfrentan a una banda de secuestradores que ha tomado a una familia como rehenes. Gracias a la gran amistad que les une, Flipper y Sandy intentan vencer todos los obstáculos.

Sandy et Flipper mettent en échec un groupe de prisonniers évadés qui détiennent un otage issu d'une riche famille britannique.

While widowed Porter Ricks is away at school learning to be a park ranger, his teen-aged son, Sandy, under adult supervision from a neighbor, remains at the family home in the Florida Keys with his pet dolphin, Flipper. While Po (as Porter is called by most) is away, Sandy learns that the family home, built on state land, is being torn down to make way for a highway. In turn, Sandy would be sent to live with relatives, while Flipper would be sent to the seaquarium permanently. Not wanting to be separated from Flipper, Sandy, using his skiff, runs away with Flipper. A distraught Po returns home to look for his son. Meanwhile, the Hopewell family from Britain are vacationing in the area. Their sailboat is hijacked by three escaped convicts, who take the father, Halsey, hostage, and set the three Hopewell women - mother Julia, and teen-aged daughters Gwen and Penny - adrift, they who eventually land on the island where Sandy is hiding... Written by Huggo

Sandy Ricks impara che il suo amico, il delfino Flipper, sta per essere trasferito in un acquario e fugge assieme all'animale in mare aperto. Giunti su un'isola deserta dovranno vedersela con tre feroci pirati che hanno preso in ostaggio una famigliola.

Продолжение приключений Сэнди и дельфина по имени Флиппер. На этот раз друзья оказываются на Багамских островах, где спасают английское семейство, захваченное бандитами...

Продовження пригод Сенді і дельфіна на ім’я Фліппер. Цього разу друзі знаходяться на Багамських островах, де рятують англійське сімейство.