They chase a light and then it chases them.

When a mysterious light entices twelve-year-old
Davy
and his bothersome cousin,
Anderson
, into the woods, they discover the forest is alive with wonder. Firefly magic dazzles the boys, and they vow to save the insects from destruction.Then a fire rages in the forest. Despite the cousins' creative efforts to help the firefighters, the situation for the fireflies plummets from grim to dire. As the blaze consumes the fireflies' habitat, the young warriors despair.
They enlist the support of the neighboring farms to protect and save the habitat of the magical treasures. If only there was-even
one
left.