Time Fragility (Time Riven) (Volume 2)

The future begins its attack.
A father pursues his son through the future and the past.
It is too late to stop the horrible advent of chronological warfare.

In Volume 2 of the Time Riven Series, Daniel Macon returns to fight the chrononauts of the future. After vowing to never again time travel, a devastating attack on London convinces Daniel to rejoin the team that first encountered malevolent chrononauts. As President William Melford's National Security Advisor, Daniel, along with Jessica Farnsley, Wick Blackwell, and Frank Cooper, attempts to gain an advantage over the future by trapping a chrononaut from the 2060s.

When their plan succeeds, they discover that the future is worse than they could have ever imagined.

In defiance of the horrible revelations about the coming Time Wars, Daniel Macon believes that he can save his son and alter the fate of humanity.