When does Dolphin Cove return?

The show centers on widowed researcher Michael Larson and his two teenage children: daughter Katie, and her elder brother David. The Larsons move to Australia, after Michael is hired by wealthy industrialist Baron Trent to perfect man-to-dolphin communications. Katie soon discovers that she has a telepathic means of communicating with both dolphins; thus she succeeds where her father and Trent have failed.