Six kids from around the world have been chosen for the first-ever mission to Mars and Miranda Regent is one of them. But as soon as the announcement is made, protesters worldwide claim the selection process was rigged -- and that Miranda was only chosen because she's American. Soon she's getting anonymous threatening messages. When the training base is attacked, it looks like Miranda is the intended target. Now the entire mission and everyone's lives are at risk. And while it seems Miranda may be the one who put them all in danger -- she may also be the only one who can save them.