The plot of "Children of Heaven" is driven by the secret of the lost shoes. One of the key plot twists occurs when Zahra sees her lost pink shoes on another student, Roya. She and Ali follow Roya home, intending to confront her. However, they discover that Roya's father is blind, and they realize that her family is also poor and in need. In a moment of profound empathy, they decide to leave without saying anything, sacrificing their own needs for someone they perceive to be in a similar or worse situation. This moment reveals the children's remarkable moral character. Later, Roya receives a new pair of shoes from her father and discards Zahra's old ones.
The climax of the film is the footrace. Ali's goal is not to win, but to secure third place to get the prize of a new pair of sneakers for Zahra. In a heartbreakingly ironic twist, despite his best efforts to slow down, he stumbles across the finish line in first place. His victory is a moment of devastation for him, as he has failed in his personal mission. The final scene shows a dejected Ali soaking his blistered feet in the family's small pond, the goldfish swimming around them. This image encapsulates his disappointment and the bittersweet nature of his journey. Unbeknownst to him and Zahra, a quick shot reveals their father riding his bicycle home with two new pairs of shoes, one pink and one white, among his purchases, offering a subtle and hopeful resolution for the audience that the children are not yet aware of.