Complex sentence: Buck rushes for the chance of a lifetime, and catches it all on camera; even one of the prophesied Witnesses, foretelling the coming of the Antichrist and the beginning of the Tribulation.
Split into simpler sentences: Buck rushes for the chance of a lifetime, and catches it all on camera. One of the prophiced Witness, foretells the coming of the Antichrist and the beginning of the Tribulation.