The beaches of Pontypandy are packed with daring rescues as Fireman Sam is a Hero at Sea! 'Operation Nautical Norman' is underway and the Rescue Team is ready for action when Norman goes fishing! But there's a different trouble-maker on-board this time, one which no-one is prepared for. Then during a trip out to sea with the kids, Charlie nets the biggest catch Pontypandy has ever seen but his boat is damaged - will they sink or swim? Find out all this and more in this collection of heroic adventures.