The secret rapture doctrine teaches that the coming of Jesus will be in two separate stages. The first, a secret rapture of the Church at the beginning of a seven year tribulation period followed by His glorious, audible, triumphant return to Earth accompanied by the Church at the end of the seven years.
It also teaches that during this seven-year period the Antichrist is going to come into power, sit in a rebuilt Temple in Jerusalem and declare himself to be God. It says that the war of Armageddon is a literal war of nations against literal Israel, which occurs near the end of the seven years and is ended abruptly by Christ