Deep in the old alleys of Qingcheng City, watchmaker Lin Jin has a secret ability - he can hear the "echo of time" sealed in antique clocks. One rainy night, the pocket watch he had repaired during the Republic of China suddenly erupted in bright light, dragging him into the same old alley in 1937. There, he met Su Qing, who was holding a fragment of the same pocket watch and calling herself the "Guardian of the Anchor of Time and Space." Su Qing told that the pocket watch is the key to stabilizing time and space. Now the fragments are scattered in different eras. If they are not collected together, Qingcheng City will be annihilated in the turbulence of time and space. The two formed a temporary partner and traveled through six eras, including the video store in 1982 and the floating city in 2050. Every journey hides a fatal trap: the "time ghost" in 1982 will copy the identity of the travelers, and the "time and space administrator" in 2050 will pursue them. What's even more strange is that Lin Jin discovered that Su Qing's life experience was closely connected with the secrets of his family, and deep in the pocket watch, there was also a "time truth" that could rewrite everything. They collect fragments on the edge of life and death, but they don't know that there is a force behind the scenes that is manipulating the folds of time and space, waiting for the two of them to step into the final trap.
