As some time-travelers try to conduct researches and collect information about various events through time, they find out that they are not only disturbing the timeline but they have initiated something which could be even more devastating than any other event to ever happen in the solar system before. Although they have time machine, they are still running out of time as a twisted tyrant has decided to give humans what they deserve- termination of the entire human race. The time-travelers journey through different times- prehistoric, medieval, interwar and a few decades before the present. They slowly discover a connection between some major historical events, and they are too late to realize what is coming for them. While they travel through time, the tyrant attacks the present.

They know it's not supposed to be done, but they have to do it anyway. They know what problems it might cause, but they have mo other option.