What's up, are these kids superpowered?
Some are. Some aren't.
There is a mutant, a time traveller, a wizard, a science/tech, and an alien, and a master strategist/thief/tactitian.
The story is very good so I won't spoil it. The reason they are all together is much more complicated than your traditional comic stories.
Alex Wilder is a straight G. One of my favorite marvel characters. Top 10, easy.
He reminds me of Huey from the boondocks... but with more of a focus on fighting evil instead of fighting white supremecay. He is one of the soundest tacticians I've ever seen. Right up there with Cyclops... but still below Batman and Dr Doom, mostly cause of his age and inexperience.