Nick is worried that he will be teased about his new hearing aid. Nick and Adrian are in Nick's treehouse, when Nick hears music coming from the hearing aid. It seems to be tuning in to different radio frequencies. When Nick hears a distress signal from a fishing boat, the police drive Nick, his mum and Adrian to the Coastguard headquarters. Nick directs a helicopter pilot towards the source of the signal, and they find the boat. The rescued fishermen send him a stereo system as a 'thank you'. Nick decided that the hearing aid is a really good thing.