1. The narrator has a vision of an angelic figure appearing before him who tells him he has come to explain the causes of the peril facing the nation.
2. The angel explains that 71 years ago another angel appeared with a warning of impending judgment, and the wickedness of the current generation is what has led to the current troubles.
3. In the vision, the narrator sees widespread civil unrest, natural disasters, plague, and foreign invasion threatening the nation before a power in the west arises to defend the constitution and restore order.