It's a race against time to save Jack's life. Ken's dubious past means that he has to rely on Sarah to secure the Langrcrest deal he's after. Jan is determined to find out who stole Anna's designs and Leo and Ken help her out. Charles involves Tom in his plans to create a new, international boat race. Avril and Charles doubt Gerald's business acumen. The Mermaid has a glut of horsepower engines. Sarah gives her resignation to an embittered Ken.