When Rana's delight, her hen, Kakoli, goes missing, causing her to enter into the state of shock, and joy consequently leaving her completely, her brother and his friend embark on a quest to find the animal, and possibly save her from the dangerous band of local poachers, who coincidently turn out to be followed for arrest by the very small team of local rangers, consisting of Rana's father, among others.

Tan is an experimental documentary which confronts the relationship between the physical body and the social body of two generations observed in contemporary Iran.