When Charlie meets a boy who's suffered a plight similar to her own, she relates and longs to help him and his young friends. First, she must convince Miles. Meanwhile, Rachel grows weary of General Monroe as she meets someone from her past.

When Nora encounters a close relative, she must make a difficult choice between family and a promise. Meanwhile, one of the most ruthless members of the Militia is tracking Miles, Charlie and the gang and General Monroe hands Captain Neville a stern warning.

Miles leads the rebel squad out of Philadelphia and away from Monroe’s helicopters and machine guns. Meanwhile, a guilt-ridden Rachel tries to redeem herself by providing power to the rebels, but once again must leave her children, Charlie and Danny, behind. As if there wasn’t enough heat, romantic sparks ignite between Miles and Nora.

A final act of heroism by one of their own saves the lives of Charlie and the gang, but the loss devastates everyone and they must carry on with heavy hearts but increased resolve. Miles sets out on a mission with Nora to recruit his former Militia comrade, Jim Hudson and enlist his savage killing skills. Meanwhile, Rachel looks for a power source and a way back into the heart of her daughter Charlie. Rachel also attempts to elude the grip of Randall Flynn, her ruthless former boss and ally of Monroe.

Neville faces danger and hard choices as Monroe doubts his loyalty, he disowns his son Jason and gets captured by Miles. Rachel and Charlie begin slowly patching their relationship only to be pulled apart again as Rachel suddenly embarks on a quest to restore the power and her self-respect. She must make a dangerous journey to the mysterious Tower as it holds her only chance at redemption.

Miles and Tom Neville find themselves fighting for the same cause but Miles still doesn’t trust him. Charlie, Jason and Nora attempt to pull off a daring river rescue of Dr. Stephen Camp to keep deadly anthrax out of the hands of Monroe. Meanwhile Rachel and Aaron are captured and threatened by Militia forces.

A captive Nora is tortured and left for dead. Monroe learns of Rachael’s attempt to reach the Tower but is unaware of her deadly plan for him. Meanwhile, Miles is desperate to find out how so many of his close associates are being brutally murdered. Later, Miles, Charlie, Neville, Jason, Hudson and Sanborn struggle to make it out of the Plains Nation to join Rachel and save her from what they believe to be certain death.

Rachel and Monroe battle with more than wits. Meanwhile, Miles, Charlie, Nora and Aaron get inside the Tower but Tom Neville and son Jason get shut out. Miles and Monroe once again face-off, this time even more lethally.

Life-threatening dangers abound on all sides as the Rebels infiltrate the Tower. Miles' leadership abilities and character are sorely tested as well as his feelings for Rachel and Nora. Aaron's genius comes in handy while Tom Neville and Randall Flynn bring new meaning to the dark side.