Seventeen-year-old Riki is worried about school and the future, but mostly about his girlfriend, Gemma, who has suddenly stopped seeing or texting him. But on his way to see her, he's hit by a bus and his life radically changes. Riki wakes up one hundred years earlier in Egypt, in 1915, and finds he's living through his great-great-grandfather's experiences in the Maori Contingent. At the same time that Riki tries to make sense of what's happening and find a way home, we go back in time and read transcripts of interviews Riki's great-great-grandfather gave in 1975 about his experiences in this war and its impact on their family. Gradually we realise the fates of Riki and his great-great-grandfather are intertwined.