"A child's solitary day at the playground turns into a park-wide adventure as he learns how to play with nine new friends"--

As imaginary superhero Bumblebee Boy, Sam rejects his pesky little brother's help in defeating pirates, dragons, and saber-toothed lions, but when Sam comes up against some scary aliens, he discovers the advantage of having a sidekick.

Lulu is excited to play with the toy that her best friend Finny brings over, but when the toy loses a wheel and fixing it becomes a game in itself, Lulu realizes that it's even better to play with Finny.