The documentary follows the intimate journey of Chinese migrant worker Yi Yeting, a benzene-poisoned victim-turned-activist who takes on the global electronic industry. While struggling to survive his own work-induced leukemia, he brings his fight against benzene from his hospital room where he helps other workers, to Silicon Valley and the international stage. Yi's efforts along with the support of others, ultimately contributes to Apple banning two of the most toxic chemicals, benzene and n-hexane, in its final assembly. Against huge odds Yi directly confronts corporate and government interests, while empowering and inspiring the people around him. His wife Liu Huihui, a stay-at-home mom, goes undercover to investigate an Apple supplier. Xiao Ya, an teenager rural migrant, who arrives in the city with hopes and dreams of a working "paradise" that she's imagined since she was a kid. Tragically she gets poisoned on her first job by n-hexane, a solvent she used in polishing iPhone.