I love this series. It's insanely fun and hilarious.
In this one, we have the Viking swimming contest, in which the last who comes back wins. Fishlegs can't swim and Hiccup isn't much better. However they get kidnapped by Norbert the Nutjob (probably my favorite reoccurring villain) and put on a ship to America (which doesn't exist).
I am not going to be happy when I run out of these.