Super Short Summary

In Peter Brown's The Wild Robot Protects, Roz returns to her island after escaping Hilltop Farm, only to face a new threat: a poisoned tide that endangers her home and its sea creatures. Determined to stop it, Roz ventures into the ocean, meeting various sea animals and ultimately discovering that the poison originates from an underwater mining operation. She teams up with the Ancient Shark and decides to use diplomacy, leading to a climactic battle that eventually results in the mining operation's end and the ocean's cleanup.