Po and Sandy rescue a despondent former water ski champion, now in a wheelchair, and her mother from a hurricane. Flipper gets tangled in a fishnet.

Despite their best attempts to impress a visiting Congress woman, Porter and the boys are devastated to learn that she plans to close the park.

In a last ditch attempt to convince Congress woman Helen Browning that she should use government funding to keep the Park open, Sandy and Bud take her skin-diving.

While Sandy and Bud prepare for the annual Coral Key Park swimming race, Porter is overcome by toxic chemicals dropped from a passing ship while he is carrying out an underwater investigation.

Ranger Ricks is knocked unconscious by an underwater explosion while tracking down a coral poacher.