When the Fuzzies through a giant beach party for their 15th Millennial Day Off, Johnny and the Sprites struggle to take care of Grotto's Grove without the Fuzzies' help.
When Johnny gets a letter from his older sister Lina inviting him to spend a week in Hawaii, he makes immediate plans to visit, which causes the Sprites to think he's leaving forever.
After Johnny and Lily hear the call of the endangered nospotalotacus, the sprites realize they need to get it out of Johnny's garden and to Grotto's Grove right away.