Lissa was so excited to spend the summer on her dad's houseboat. She thought they'd have lots of exciting adventures, but her dad's job means that he's too busy to spend much time with her. Lissa can't help but feel lonely and starts to miss her mum and sister back home. Then one morning, she spots a lost seal pup in the river. She starts waking up at dawn every day to catch a glimpse of this beautiful creature. Lissa wants to help her find her way home, but can she protect the young seal without scaring her away?