Sang Ly struggles to survive by picking through garbage in Cambodia's largest municipal dump. Under threat of eviction by an embittered old drunk who is charged with collecting rents from the poor of Stung Meanchey, Sang Ly embarks on a desperate journey to save her ailing son from a life of ignorance and poverty.

Sang Ly lives at Cambodia's city dump where survival is a daily struggle, but when she develops an unlikely friendship with the ill-tempered rent collector, Sopeap, who teaches her to read. Sang embarks on a life-changing journey to give her son, Nisay, a better life and future.

Top-selling contemporary artist Vik Muniz takes viewers on an emotional journey to the world's largest landfill of the day, Jardim Gramacho. Here the catadores, who number in the thousands, work under the hot sun collecting recyclable materials such as bottles, plastic, and metal to be sold to wholesalers. Muniz invites the catadores to add refuse to his art, photographing the work from overhead. The finished artwork will then be on display in museums...