I know the plot of "Port to Port", because I used to live on Chiswick Mall in London, a street that is frequently submerged by the tide. Mr Haddock has an altercation with a motorist who is driving along the Mall whilst it is inundated,Mr Haddock being in a small boat. The Law of the Road, and the Law of the Sea conflict when giving way, and the motorist is deflected off the road and his vehicle is "drowned" by going into deeper water.Naturally, a court case ensues, and naturally, Mr Haddock wins the argument. I have a copy of Uncommon Law, by AP Herbert which gives the story lines that the series follows very closely.
—David A R Brown