With winter over, the animals of the Drift awake to a new season, and with the mystery of the treasure map solved, they look forward to a quieter life... or so they think! Rollie, Toby, Donie, and Rowan enjoy a picnic on the river, all is quiet and peaceful, until Rollie discovers a bottle in the water with a worrying message in it....Help me! Is this just a trick or is there really someone in trouble in the Drift? Rollie sets...