Plot hole: During the scene where John (Russell) decides he needs to break into the medical van, he watches an infamous YouTube video about using a tennis ball to open "car door locks." Unfortunately for John, the YouTube video was faked, and in reality was proven to be fake on the TV show MythBusters. (00:55:40 - 00:56:30)phiberoptik
Plot hole: John's plan to help Laura escape would not have worked, because he would not have been able to plan ahead like he does in the movie. He would have to know where Laura would be transported, and when, and if she would be transported there. He would not have known any of that as the information is kept secret from prisoners, and the public.