When Sam turns into Bumblebee Boy to defeat pirates, fight dragons, and tame saber-tooth lions, he doesn't need his little brother, Owen, butting in and ruining his adventures. Bumblebee Boy flies alone! But what happens when Bumblebee Boy comes face-to-face with more scary aliens than even he can imagine? Owen is there, garbed in goggles and a towel cape, and he just might be the perfect alien-fighting sidekick.

For all young superhero fans with big imaginations and curious siblings, here's a hilarious and sweet new adventure from the creative team who knows exactly how kids think.