My Friends Tigger & Pooh (2007)

S1E5 Piglet's Piglet's Echo Echo

After hearing his own voice bounce back at him from a cave, Piglet becomes convinced that someone is trapped inside. Determined to help, he gathers his friends to investigate the mysterious sounds. As they venture closer, they discover the truth behind the echoes, leading to a light-hearted adventure filled with laughter and teamwork. Through this experience, Piglet learns the importance of friendship and the fun that can come from a little misunderstanding.