Yassir Bashar holds a cell phone photo of him with his son, who was kidnapped by ISIS. When ISIS swept through his village, they captured his wife Khaida and killed one of his two sons, along with two of Yassir's brothers. After a year in captivity, his younger son, Sezar, 5, was released and brought to Germany with his sister and her husband. Yassir arrived in Greece last month to find the border closed. He has heard only once from his wife, who is imprisoned in Raqqa, Syria. She wrote him a letter that was carried to him by a hostage released by ISIS. Yassir recently moved from Idomeni camp to Petra, a camp exclusively for Yazidis, who say they were fearful living among so many Muslims. He is trying desperately to reunite with his son and sister in Germany.