Tom Howard wins the Commodore Cup with his boat, The Flying Fish. But at a celebration dinner with his family, he announces that he's been made redundant.
Jack is certain that Tom will invest in the Mermaid Boatyard. Tom meets with the bank to obtain the loan he needs to buy into a partnership with Jack. Ken tempts Jan with a full-time job offer.
Avril gives her father, Jack, good news and tries to conceal the real identity of the person purchasing Tom's boat. Jan and Tom's marriage becomes further strained. Jan accepts Ken's job offer.
Jan plans a business trip to London for Ken. Tom's continued presence at the boatyard causes concern for Bill and other workers. Tom's design plans for a revolutionary boat ignite Jack's anger, particularly when Avril sides with Tom.
Jack and Avril clash over Tom's ideas. Detecting his interest in Jan, Dawn argues with Ken, leading him to order her out. Feeling unloved and unwanted, Abby makes a move. Jan makes love with Tom, but he wonders who really excites her.
Gerald Urquhart inadvertently tips Ken off, leading Ken to send Dawn on a fact-finding mission. Later, Ken takes great delight in sharing a secret with Jan.
Jan gets an earful from Dawn; An unwelcome visitor turns up at Avril's door; Polly and Jan attend an art exhibition where they run into Charles Frere; Polly stuns Jan with a shocking secret, and Jack gets bad news from Germany.
Tom's prototype is the only thing that can save the Mermaid yard, but he faces opposition from Jack. Avril's unwelcome visitor returns and this time carries a thinly veiled threat.
A mysterious stranger arrives in Tarrant. Charles Frere instructs Gerald to keep a very close eye on Ken. Tom and Avril enjoy a private celebration as the prototype gets underway.
Tom becomes involved in an explosion near The Flying Fish. Ken receives more dirt on Tom; Leo accidentally learns about Tom's actions, and Ken tells Jan his suspicions regarding Tom and Avril.
Jan has thrown Tom out of the family home. Jack gets bad news from his solicitor. Charles Frere discovers he has reason to get back at Tom. Claude has a business proposal for Jan, but she continues to feel loyalty to Ken. Ken and Jan kiss.
Jack calls in a favor to dig deeper into Richard Shellet's criminal past. Tom presents his prototype design for The Barracuda to the manufacturers board. After a visit from gossipy Polly, Jan asks Ken to slow things down.
Jan shares with Tom her fears about Lynne's infatuation with Frere. Lynne hears gossip suggesting Frere was once involved with Polly. Polly and Leo await word on Abby, who undergoes emergency surgery. Frere cancels another date with Lynne.
