Books in Rift Runner series

All Orion “Ryan” Cooper ever wanted was to enter high school with the rest of his friends and be normal. But being recruited by the time-traveling Special Historic Operations Council (SHOC) to help save history as humanity knows it quickly ruined that. What seems like the adventure of a lifetime turns deadly when Ryan’s minor role in a mission to Nazi Germany forces him to choose between running to safety or seeing the mission through. From crowded Nazi streets to the Parthenon of Ancient Athens, Ryan fights a one-man war against the organization known only as Legion: a time-hopping terrorist group dedicated to the destruction of mankind for their own ends. Whether he fights or runs, death seems the only guarantee, and Ryan can only pray he stays one step ahead…

All Orion "Ryan" Cooper ever wanted was to enter high school with the rest of his friends and be normal. But being recruited by the time-traveling Special Historic Operations Council (SHOC) to help save history as humanity knows it quickly ruined that. What seems like the adventure of a lifetime turns deadly when Ryan's minor role in a mission to Nazi Germany forces him to choose between running to safety or seeing the mission through. From crowded Nazi streets to the Parthenon of Ancient Athens, Ryan fights a one-man war against the organization known only as Legion: a time-hopping terrorist group dedicated to the destruction of mankind for their own ends. Whether he fights or runs, death seems the only guarantee, and Ryan can only pray he stays one step ahead...