Parker causes the delay of an important Backstep mission to go to New Orleans to prove the innocence of an old friend scheduled for execution for a murder he didn't commit.
In Russia over 38,000 people are wiped out by Sarin gas, but it is a ploy by a Russian military officer to gain access to Olga and create their own Backstep Sphere.
Parker must go back to his old mental hospital to work undercover to find a killer who influences others to kill and maim based on astrological patterns.
A militia leader detonates a nuclear bomb in Washington, but the Backstep goes awry when the Sphere goes back without Parker - the team has 7 days to figure out what disaster is coming and resolve it before it's too late, and all they have to help them is a reluctant psychic who was part of one of Mentnor's past experiments.moreless
Parker must decide whether or not to heed the words of a man who claims to have Backstepped from the far future, and warns that Earth's safety depends on the death of a revered holy man.
When a neutron bomb accident obliterates all other life on Earth, Parker, Olga, Owsley, and an army officer undertake an arduous journey to reach Project Backstep and reverse things before their 7-day window of opportunity expires.
When Talmadge becomes incapacitated following an apparent emotional breakdown, Nathan Ramsey is appointed as his successor, and Ramsey immediately begins to implement Parker's removal.
While on a mission to prevent the murder of the U.S. Attorney General by a religious zealot, Parker is plagued by flashbacks to a disastrous mission in Somalia where the rest of his team were killed.
Parker ignores phone calls from someone claiming to be an old girlfriend, Deloris, until she carries out her threat to paralyze the nation's air traffic control system.
Olga and Parker get romantically involved when he backsteps to save her life after she encounters terrorists blowing up an oil line in the wilderness area where she's vacationing.
Atmospheric interference causes Parker to return from a back-step with a woman who died fifteen years ago, and whose presence threatens to unravel the fabric of the universe.