After finding, and apprehending, his absentee father, Alex Cheradon and his team are ready for their flight back home to Clayton City. One six hour nonstop flight from Las Vegas and then everything's back to normal.
Except that this isn't an ordinary flight.
And Charles Cheradon isn't an ordinary scientist. Hence the 'mad' label.
And Devon Christian...Well, obviously he's not normal. That just goes without saying.
And Alex Cheradon has an excellent track record for being in the wrong place, at the wrong time, for the wrong reasons. This flight isn't going to be any different.
Trapped on a flight that feels like it's going nowhere, Alex finds himself worrying about his crazy partner, having to go head-to head-with a terrorist and, worst of all, dealing with a deadbeat dad who just wants to have a heart-to-heart with his son.