A young girl comes of age when she must help an injured monarch butterfly fulfill its life cycle. Mera Rodriquez is a Mexican-American girl who has suffered great tragedy during her young life. This tragedy has left Mera sullen and unmotivated, believing her opportunities are limited. One fateful day, Mera finds herself responsible for another life: a monarch butterfly that has also suffered great tragedy. Mera cares for this butterfly and soon discovers strength and purpose she never knew she possessed. Through a grand adventure taking Mera back to her ancestral home, she experiences her coming-of-age while helping her monarch butterfly get home as well. With her mentor, Dr. Arana Mariposa, and her school nemesis Shelly Wartner, aka Sneezel, they travel to central Mexico, to the Mountains of the Monarchs, seeking the butterfly sanctuary where Mera’s butterfly may fulfill its purpose in life.