When Mookie the dog knocks over the schoolhouse, Fly comes up with a daring plan to get him to stop.
Fly accidentally flies into a tree, and though she isn't injured, she's so unnerved by the event that she becomes afraid to fly. Meanwhile, Spider and Worm decide they want to be great inventors.
Fly and Spider help their friend Worm try to search for the perfect underground space for his new bedroom.
Fly pretends to be her superhero alter-ego - Fly Girl - and goes on a mission to rescue a Dung Beetle's run away home and newborn larvae. It's too big of a job for one super bug so she joins with her friends to form a superhero team to save the day.
When Spider won't stop doing magic tricks in class, his teacher Mrs. Mulch has him stay after school. But instead of being punished, Mrs. Mulch takes him on a fieldtrip and shows him the magic of nature.
When Lucas captures Worm, Mama Worm and a few other bugs, Fly, Spider and Firefly launch a rescue mission into the house to save their friends.
Lucas puts a tire swing on the Bug Tree, disrupting the lives of all the bugs who live there.
Fly, Worm and Spider succeed in permanently de-activating a motion-detection light that's been installed on the human house next door. In the process, Fly learns that it's not so bad being part of a big family.
On the day of their big tee-ball game, Worm, Fly and Spider find themselves unexpectedly caught in a big storm, and try to seek shelter from it.
Each of our heroes has a Halloween wish: Fly wants to break her record for most collected treats, Worm wants to have a good costume (for once), and Spider would just like to make it through the night without scaring somebody -- including himself!