Little Finny, a curious Nestrian, and his best friend Leah, a grym adventurer, accidentally fall from the ark that was going to save them from the end of the world. Saved by a small barrel that keeps them afloat, a strong storm will separate them. Finny will end up in a remote place where he will meet other animals of the same species, while his travel companion ends up on a paradisiacal island, but surrounded by volcanoes. Against all odds they will have to do everything possible to find each other again and save each other once more.