Davidson (Wahlberg) finds out the monument that the apes were worshipping was actually the ship that he launched from at the beginning of the movie. It was a monument because the monkeys that were kept in the cages escaped and created the ape society on the planet. It had been there for thousands of years, which means Davidson jumped forward in time through a black hole. Davidson finds his ship and travels back to Earth. When he jumped back, time went back to normal and he hears a voice on the radio, guding him in. He crashes near the Washington Monument, and sees a statue of General Thade instead of Lincoln. Police rush to the scene of the crash and they all turn out to be apes.