Loveless & Godstone Regret

If you had a time machine, would you do something good with it?

Or would you bring the world to its knees and accidentally go on a killing spree through time chased by a small army.

Jack Loveless never meant for it to happen, but as Harry Godstone his arresting officer never fails to point out, he's in an awful lot of trouble.
If the world is to end in 36 hours don't trust these two to save it.