Plot

While Hobie is away in Santa Barbara for a surfing meet, an escaped convict's wife, named Debra Harris, takes Mitch hostage aboard their yacht for Mitch to perform emergency surgery on her husband for a gunshot wound he got during his escape from prison. Meanwhile, Matt and Slade are still competing for Summer's affections when the three of them find a dangerous underwater cavern that houses a huge octopus... with an attitude. Summer's continuing secret battle with bulimia begins to catch up with her despite C.J.'s helping talk. Eventually, after Matt saves Slade from the cave octopus, Slade sees that Summer is better off with Matt and he leaves town for a surfing meet in the Caribbean, this time for good.—Anonymous

While Hobie leaves Malibu for a junior surfing competition, Matt and Slade agree to settle their rivalry for Summer by dare who can pass the rock closest in tempestuous water. Matt loses by falling and his board disappears in an ill-reputed cave, where a giant octopus seizes all lost boards. The trio returns after Summer convinced the boys to call off the exclusive stake and hang out as three friends. Now the octopus attacks, and Slade ends up nobly bowing out to train on Hawai indefinitely, having seen how much more Matt and Summer care for each-other. Brady Nichols escapes from the jail o the beach, helped by his armed lover Debra Harris, but gets shot badly. She forces Mitch at gunpoint to attend to Brady's wounds, then jeeps him hostage aboard a yacht.—KGF Vissers