In Melilla, a Spanish enclave surrounded by Morocco , hundreds of African refugees try to climb a barbed wire to enter "Europe". Mateo, a Spanish guard witnesses his colleague Javi strike down one of them who falls down dead, . Meanwhile , in distant Cameroon, the killing of an elephant reserve`s star elephant by poachers is inadvertently witnessed by seven year old Adu and his elder sister Alika.The forest guards along with their Spanish external advisor Gonzalo , arrive too late to find the elephant`s carcass and Adu`s abandoned bicycle. How the seemingly unconnected stories of Adu , Gonzalo and Mateo intersect forms the plot of the movie - Adu. Adu and his sister Alika , having lost their mother to the vengeful poachers , decide to undertake an arduous journey to Spain to join their father. They travel from Cameroon to Senegal , where their aunt pays a human trafficker to put them on a flight to Spain. They are cheated by the trafficker and asked to travel as stowaways i...