Incredibly exciting ...

"Bill" (Liam Neeson) occurs after a last sip of brandy in a daze to a 6-hour international flight across the Atlantic.
As an accompanying air marshal he observed climb in, passengers will accompany him on the trip.

Seated in First Class, he is of a pretty lady (Julianne Moore) involved in a conversation that would relieve his fear of flying.
After the start has survived, he leans back to relax a little, when he suddenly receives a message from a stranger about his encrypted cell phone service ... "$ 150 million to a Swiss account numbers, or all 20 min a passenger die. "

It begins a very exciting finding a "spirit" at 15km altitude somewhere over the Atlantic, which offers no clue. No evidence, no trace hints at Bill where to start or how to behave in order to find a way out.

The viewer is repeatedly thrown from a determine direction in the next.
Man looking feverishly for hidden clues and goes through every opportunity, nothing seems to make sense.
Really everyone it could be.

While looking the thriller you will sympathize despair the increasingly propagating in the Marshall ...

The protagonist is shown very convincingly by Liam Neeson. The role of investigating single-goer, he perfectly embodies in many other films.

Have Fun ;-)