The story begins in the late 19th century when General Custer was leading the US Calvary against the Indians. The Battle of Little Big Horn had Custer and his 7th Calvary trapped in a plain. 268 soldiers and at least 136 Indians were killed at the Battle of Little Big Horn considered one of the major turning points of the Indian wars. Your character, Alexander Morris is rescued after seeing Custer get killed by arrows, by a figure clad in a futuristic suit. You awaken 300+ years in the future where man has mastered time travel. You are introduced to Mother who runs KronoTek the company that controls time travel in the future and Agent Dexter who trains you in the use of weapons in a training simulation. Your mission once training is completed is to seek out anomalies in the time stream and set things right

The story has you follow two families through different time periods from the trenches of World War I fighting Germans to the Battle at Antietam in the American Civil War. Your mission eventually has you rescue a soldier named Welsh in the middle of one of the bloodiest battles of the American Civil War, Antietam. The other storyline has you rescue a soldier named Petrovich during World War I. As you progress through the game there are other time travelers called "The Opposition" that face you in key points. At first these soldiers cannot be killed, forcing you to run away. The storyline culminates in a WWII POW camp where your mission is to escape. As you move along in the game, more and more of the underlying story is revealed eventually leading to an interesting plot twist that I will leave for you to find out