Modern fish farmer Lu Chuan is deeply trapped in a three-hundred-thousand debt crisis, unexpectedly connecting to ancient times through an old well. He meets Shen Zhiwei, who is facing a tribute fish conspiracy, and the two communicate supplies across time and space, joining hands to fight against treacherous merchants. From desperate survival to stabilizing their respective careers, they break through difficulties with integrity and courage, support each other across time and space, redeem each other in adversity, and write a two-way rush spanning past and present.