 The team stumbles on an old treasure map, but it isn t just ANY treasure map, it s a MUSICAL treasure map. The Little Einsteins decide to follow the musical clues all the way to the hidden treasure. But their old nemesis, Big Jet, overhears their plan and wants the treasure too! Rocket transforms into a pirate ship as the team sets off on an adventure that includes a sunken ship, a spouting whale, island hopping, electric eels, and the greatest treasure - a whistle that calls a group of friendly dolphins!