When Merryglow the firefly sets off on his travels, Mabel the tortoise must learn – through the help of two unexpected friends – that even in the darkest times, friendship can help her shine.
Mabel and Merryglow are the best of friends, their days are filled with her laughter, and the nights shine with his light, but Merryglow has always been a wanderer at heart, and the time has come for his next adventure.