When Lin Yan, an ancient book restorer, was repairing a fragment of a Song Dynasty scroll, he accidentally triggered the "folds of time" hidden in the ink and became involved in a secret protection plan that spans a thousand years. He must not only fight against the mysterious organization that covets the power of time and space in the modern era, but also piece together the truth left by the ancestors of the Night Watch in the "fold nodes" of different eras. The final choice will determine the survival of all time and space.
