When Thomas leaves for the docks, the trip initially starts off smooth, but there was trouble up ahead. A set of malfunctioning points leaves the trucks in the right direction, and Thomas diverted onto an old pier line. He falls through an uncompleted causeway gap into a tidal pool, much to the trucks’ delight. When the Fat Controller hears the news, he checks the timetables and sends Arthur, who was the nearest engine, to assist Thomas. Due to the heat, the ice keeping the fish fresh begins to melt and Thomas is worried that it will go off. Arthur is surprised to find Thomas in the water, but Thomas is not concerned about himself and tells Arthur to take the fish and leave him. Arthur’s driver informs Thomas that the breakdown van will arrive soon to haul him out. Arthur takes the fish away and hurries to the Docks, delivering the fish just in time.