Time Warrior

When grad student Jim Tiber hears about a time machine at Columbia University, his first plan is to go back in time and to meet the Beatles and study the way they rose from mediocrity. However, just as he's about to discover their secret in 1962, he is thrown back in time to an alternate timeline - Rommel's powerful North Africa campaign.

Our hero becomes a US infantry lieutenant as the time war shifts focus to the Tet offensive and the attack on the US embassy in Saigon. This rewriting of military history may turn the Vietnam into World War III, and only the Time Warrior can prevent it.

When the Iron Men alter the course of history, upsetting history's delicate equilibrium, Jim Tiber is pulled through a dangerous rip in time, and he must set the past right and stay alive.