In a small village, best friends Marlene and Anni meet every day under their secret apple tree. However, their friendship is put to the test when they argue over the plan for a treasure hunt. While Marlene prefers to think everything through and plan carefully, Anni follows her adventurous instincts. A misunderstanding leads to a fight, and the two go their separate ways. But thanks to heartfelt conversations with their mothers and a night of reflection, they realize how important their friendship is. The next day, they meet again under the apple tree, determined to reconcile and search for the treasure of the forest together. Marlene and Anni - The Treasure of Friendship tells a touching story about unity, conflict, and the courage to take the first step towards reconciliation.