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After the last Truffula tree fell, Once-ler witnessed the consequences of his actions: the Lorax departed, taking with him the animals that once thrived in the forest. Alone and regretful, Once-ler became a forgotten man, burdened by his past mistakes.

A Final Hope

Empowered by Once-ler's story, Ted is determined to bring back nature. Once-ler gives him the last Truffula seed, urging him to plant it in Thneedville, igniting the hope of reviving the environment. However, the stakes rise when the O'Hare corporation discovers Ted’s intentions and attempts to sabotage his efforts.