Engineer Maxim Baikov receives from an unknown person an offer to sell the technical documentation of the new Boeing, on which he is working at Zaslon JSC He refuses, he gets hit by a car. However, Maxim does not die, but falls into the future. Here he learns that during the tests of the Boeing explosion will occur, his colleagues will die. Returns, warns of danger, but he is not believed. He does not know where the trouble will come from. The range and approaches to it are strictly guarded, everything is under control, and the date of the explosion is approaching. Will he be able to prevent it? And who will help him in this? Sometimes help comes from where you do not expect it .