Rebirth: The Time Guardian Series

A scientist developed a time machine to undo an abuse he experienced in his youth. Before he could accomplish this personal mission, the FBI commissioned him and his team to prevent a terrorist act in the past. Unfortunately, these two missions took a back seat to their accidental entrance into different historical events. How can they stop their time hopping, restore history to its correct setting, and return home safely? Not only are they traveling through time, but they are racing against time.