Experience the excitement of oceanic adventures with Barbie, Chelsea, and the Roberts family as they embark on a thrilling cruise. “Barbie & Chelsea The Lost Birthday” follows the tale of Chelsea, the youngest and most spirited of Barbie’s sisters, as the Roberts family sets off on a cruise to celebrate her seventh birthday. However, upon crossing the International Date Line, Chelsea realizes her birthday has mysteriously vanished. Determined to reclaim it, she sets off on a magical quest through a mystical jungle island.