The New Swiss Family Robinson
Cast: David Carradine, Blake Bashoff, Diane Kirman, James Keach, Jane Seymour, John Mallory Asher, Billy Bates, John Edmondson, Simone Griffeth, John Harnagel and others
When Jack Robinson gets a new job in Australia, he decides to take his family by sailing a yacht . Blake's men turn up to capture them. The family escapes but loses the yacht on a reef. They build a camp on an island. But the pirates keep coming back, and the boys discover why: he hid a treasure in the yacht.