While exploring Bailey's Cove, Jonah & Nicole come across a deep sea gill net that could ensnare the area's sealife. Soon after they meet Agnes Calhoun, an old friend of Grant's with a history of aggressive ecological crusading, who inspires Jonah to try to tackle the net himself with near-deadly consequences.

Lying and cheating is not what a healthy relationship is about, unfortunately Jonah learns that the hard way. After getting a new girlfriend, he wants to impress her in every way, because she's wealthy and he doesn't want to lose her.

While enrolled in a scuba diving certification program, Jonah and his friend Derrick accidentally injure a wolf eel with an underwater spear gun. When Jonah takes the blame, Derrick must decide whether or not to come forward and face the music.

Nicole is injured during a mountain climbing practice and develops a fear of heights. When she decides to continue with her climb, she is forced to confront her fear when a dire situation arises.

Grant, Nicole and J.L. go on a camping trip, but when Nicole is swept away and injured in the rapids things go from bad to worse.

A change in the family by way of a proposal means that everyone in the soon-to-be-new family must learn to deal with change.

When Grant contracts the chicken pox, J.L. pledges to nurse him back to health ""for better or for worse."" Meanwhile Nicole and Jonah investigate a large number of fish deaths near a rural river.

Jonah becomes jealous of his girlfriend's seeming interest in his new friend Larry, and his anger comes to a head when the duo join forces for their high school's annual car rally competition.

A weekend away is the order of the day when Nicole, Jonah and George conspire to send Grant & J.L. to a seaside resort for some much needed time together.

After Grant unsuccessfully tries to talk George out of going on an expedition to a glacier, George suffers a compound fracture and must be rescued by Jonah and Nicole in a daring maneouvre.

The arrival of Grant's niece Jess throws all into an uproar as the Aquarium staff hunt for an escaped toad, Nicole tries to convince Jonah to introduce her to his new friend, and J.L. hosts a luncheon for an old rival from high school.

When her father returns from abroad and reveals to J.L. that he may be losing his sight, she must convince him to seek medical treatment.