The Onedin Line (1971) : 8x2

Still in Bulgaria having dropped off the disguised, fugitive Prince Alexander Onedin and Captain Baines are captured by Tsarists, a fifty thousand pound ransom being required for their freedom. By selling off some of her shares and four of her brother's ships, Elizabeth raises the money and travels to Bulgaria with Samuel to hand it over. However the captives have already been rescued by the quick-thinking Tom and James is far from grateful to his sister for her gesture, which, he claims, will ruin him.