Golden Bay is having a fancy dress party. Princess is dressed as a Royal Barge, Rocky as a clown, and Cruiser has come as a pirate. However, when Cruiser decides to take to the high seas, he forgets to fill up on fuel and becomes adrift. / Trawler has been bragging about his exploits in his younger days. Elias, Swifty and Dippy decide to put Trawler's supposed heroism to the test.

Big Blinky's island has been left with seaweed, rocks and other detritus after a big storm. Trolley discovers what Gill and Gull pronounce to be an egg. Elias transports the egg to Cozy Cove where it is to be kept safe. / Helinor, Dippy and Elias have to take a test to prove that they are rescue-worth. Elias fails the test and now he can't go on patrol unless Helinor or Dippy go with him.

Elias decides to go exploring in unknown waters without telling anyone, but he strikes a hidden rock and damages his propeller. It's up to Swifty to lead Helinor and Dippy to help him before he's dashed against the rock. / Trolley decides he'd like a day out in Cozy Cove to spend with his friends. But when he stows away aboard Trawler, his disappearance sets in motion a huge rescue mission.

While Trolley is having repairs done at the shipyard, Big Blinky's light bulb blows, and there is nobody to fetch a spare form the stores below. / Rocky is showing off again - and manages to Splash water all over Smacky. Rocky finds this very amusing indeed, but Big Blinky nor Smacky don't. And with Elias' help, he turns the tables on Rocky - once he's fitted with a whopper of a jet engine!

Trawler is setting off on another fishing trip in spite of warnings of an approaching storm. In seeking to moor himself until the storm passes, Trawler manages to get his anchor stuck. / Swifty refuses to be sensible and charge up before setting off for Echo Cave where during a game of Hide and Seek he loses all his air and is unable to call for help.

The Cozy Cove Light Show is the most magical display to celebrate the longest night of the year. When Rocky decides to have his own display in Golden Bay the power surge cuts all the electricity to the entire area. / Smacky's depressed because he's not the fishing boat he was in the old days. But Elias and Dippy feel sorry for Smacky and come up with a plan to restore his confidence.