Buried (2010) on Netflix

American Paul Conroy is in Iraq working as a truck driver for contractor Creston Rowland & Thomas (CRT). His is the last truck in a convoy that is attacked by unknown forces. Being knocked on the head probably by a rock is the last thing he remembers before he awakens, gagged, his wrists bound, and he locked and buried in an old fashioned handmade wooden coffin. After he is able to remove the gag and the wrist constraints, he finds in the coffin a lighter which provides some illumination, a pen and most importantly a smart phone with approximately sixty percent battery life. The phone, set to some Arabic script which he does not understand, was placed there as a means of communication with his unknown captors, who are demanding a ransom of $5 million by 21:00, which is in a few hours. Paul uses the phone to try to contact someone, anyone, who he thinks can help him, including his wife back in Michigan, the US State Department and CRT, which is not as easy for him as he would like. Over time, he is able to find other items in the coffin, again placed there purposefully by his captors, for other things they ask him to do. Some of these items may become useful for Paul in his survival. Beyond his captors, there are other obstacles to Paul making it out alive, some obvious such as lack of air, the phone dying and the box not being reinforced, but there are some other obstacles and dangers, perhaps the most fearful to him being some people on the other end of the phone.