Five years passed, and Yu Fengcheng and Bai Xinyu, who used to guard the border side by side, met again at the crossroads of fate. One is an emergency rescue team leader who continues his mission in the northwest desert with the trauma of PTSD, and the other is an upstart entrepreneur who has lost his youth and is taking charge of the business world in the capital. The reunion at the gilt cocktail party opened up the five-year gap, and the old scars on the wrists brought back memories of the military camp. The sudden geological disaster in the northwest made the two side by side again on the ruins. From misunderstandings to life and death dependence, can the frankness in front of the hospital bed untie the knot of the past? When the iron blood of the rescue captain collides with the tenderness of the entrepreneur, how can they revitalize the "Topol Spirit" in ordinary life amidst the tests and career choices in a different place? This is a continuation of growth, redemption and love, witnessing the two young poplar trees being connected by their roots and sprouting new green in the tempering of time.