When U.S. intelligence reports there's something going on in Russia, President Jack Ryan and his youngest daughter, Katie, determine the Russians are about to launch a super missile submarine, and the race is on to find its location and decide if it poses a threat to the continental U.S..

Still pursued by the evil Count Olaf, the Baudelaire orphans attempt to reach a very important VFD meeting, but first they must travel in a rattletrap submarine to the Gorgonian Grotto, a dangerous underwater cave, in search of the sugar bowl.

A young boy meets many friendly sea animals as he travels underwater in his bright orange submarine.

In the summer of 1851, with encouragement and ideas provided by his family, an inventor builds a working submarine and takes his family for a ride. Includes notes about Lodner Phillips, the real inventor on whom the story is based.