Basically, this story is about two kids, not from around here, running away from something scary. They've got special powers and are in a real bind. They're super techy and gotta hightail it to Witch Mountain pronto so a big invasion doesn't happen.
The preview also shows some crazy car chases with people chasing the kids and their buddy. There's also a bounty hunter, which makes everything even more intense. The whole world could be in trouble, no pressure!
Then it's this weird team-up. The alien kids hook up with a human, who's totally skeptical at first. He ends up being their defender, driving them and helping them ditch anyone trying to grab them. You get the feeling they're gonna get pretty close while all this stuff goes down.