The Five Friends discover a dolphin in the rocky bay that is obviously not well. Only Mr. Fisher can help here. But he has disappeared without a trace. Together with his son Alf, they go out to sea to look for him. An exciting adventure begins. Luckily they can always rely on each other. Cassettes and CDs were yesterday. The tigercards are the new medium for audio plays, audio books and songs for children: scratch-proof and trouble-free at a low price. Operation is child's play: insert the tigercard and the tigerbox Touchden plays the tracks automatically. And the best: Once paired, the tigercards can also be used offline - for the greatest listening fun on the go.The beautiful design and the robust material make the tigercards a popular collector's item for all radio play fans.