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The phenomenal bestselling series by Summer Lane follows the story of a young woman, Cassidy Hart, and her adventures, romances and fights amidst the devastation of an apocalypse in California.


The series will conclude in 2017 with the 10th installment.

State of emergency

Author:  Summer Lane

Series:  Collapse Series #1

Genre:  Post-Apocalyptic Romantic Adventure Series 


What would you do if the world as you know it ended in an instant? 

How far would you go to survive? 


Cassidy Hart is your typical high school graduate: a little shy, a little sarcastic and a little naive. But when an electromagnetic pulse takes down the United States, she's forced to kick into full survival mode when she gets separated from her father. 

Yeah. Things suck. 

But with the help of a handsome soldier named Chris, she just might find her dad without getting into serious trouble. 

Emphasis on might. 

Oh. And there's the matter of avoiding getting killed in a world that's quickly turned into an active war zone. 

It's going to change Cassidy's life. 

It's going to be a major pain in the butt. 

State of chaos

Author:  Summer Lane

Series:  Collapse Series #2


Cassidy Hart has had better days. 

Her dad is missing.

Her friends have been captured. 

And modern society is pretty much gone, thanks to an EMP that destroyed the technological infrastructure of the United States. Surviving in the foothills of California is a challenge, but with the help of former Navy SEAL Chris Young, Cassidy's been able to stay alive. 

Until now. Omega, the shadow army arisen from the chaos, won't stop until every single survivor is either under their control or dead. Taken by soldiers and forced into a labor camp, Cassidy must turn the tables on her captors. Escape means everything. Unfortunately, staying out of Omega's crosshairs is easier said than done. 

You can run. 

But you can't hide. 

Cassidy's about to learn that the hard way. 


state of rebellion

Author:  Summer Lane

Series:  Collapse Series #3 


Everything has changed. 

After a devastating ambush that left the militia group Freedom Fighters struggling to survive, Cassidy Hart has been lucky to escape with her life. Along with her Commander and former Navy SEAL Chris Young, she has made a shocking discovering concerning the whereabouts of her father. The militias have moved further into the mountains. And the secret that is kept there will come with a price. 


When the National Guard arrives, Cassidy is faced with a choice that will force her to choose between her friends and her family. Omega is getting stronger. The fight for freedom looms on the horizon. 

It's all or nothing. 

And Cassidy has no intention of giving up. 

state of pursuit

Author:  Summer Lane

Series:  Collapse Series #4


Cassidy Hart is alone. 

Her Commander and the love of her life, Chris Young, has gone mission in action. A horrific battle with Omega has left too many good men and women dead, and Cassidy must bear the burden of leadership in the militia on her own. 

But she's not about to give up. 

With the help of her faithful friends - and former enemies - she will stop at nothing to rescue Chris and ensure victory for the militias in their fight against the all-powerful Omega forces. The game has shifted. 

This time, Cassidy is one step ahead of the enemy. 

This time, Cassidy is in charge. 


state of alliance

Author:  Summer Lane

Series:  Collapse Series #5


There is no such thing as safe. 

For Commander Cassidy Hart, staying alive is only one of her day-to-day problems. As a newly minted Senator of the State of California, she must travel to Monterey Bay with the hope of bringing an agreement between the militia forces and the Pacific Northwest Alliance as the United States desperately battles against the shadow invasion forces of Omega. 


But Monterey is not what it seems. The threat of another Omega attack is imminent, and Commander Chris Young - the love of Cassidy's life - is not the only person who is keeping secrets. Assassinations, betrayal and startling revelations lie ahead. 

The war is now. Fight or die. 

Choose your side. 

state of vengeance

Author: Summer Lane 

Series: Collapse Series #6


Vengeance is coming. 

Monterey Bay, California, has barely survived a brutal attack from the evil invasion forces of Omega, and Cassidy Hart is exhausted. She has lost a friend and gained a new enemy. The militias seems to be weakening, and Omega seems to be getting stronger. 


In an effort to recruit more troops, Cassidy travels to the desolation of the high mountains to find the mysterious troops of Sky City, and to eliminate a threat that has long been growing just out of the militia's reach. 

Cassidy is not alone. Old enemies greet her, and the most dangerous person of all just might be the one she trusts the most. 

The fate of the free world is at stake. The end is coming. 

The militias - or Omega - will have its revenge. 

state of destruction

Author: Summer Lane 

Series: Collapse Series #7  



The destruction of California is at hand. 

Cassidy Hart and Chris Young have survived a dangerous mission into the heart of Sky City, a secret Omega base hidden deep in the mountains, but their vengeance has come with a price. The dark, ominous cloud of nuclear war threatens to destroy everything they love, and they are forced to make one final stand against Omega's western invasion force. 

San Francisco. 
Cassidy and her friends retreat to Alcatraz Island, regrouping with their lethal strike team, the Angels of Death. Their mission: infiltrate the most important Omega base on the west coast, and assassinate everyone they find there, including a new and dangerous enemy, the ruthless Omega leader Veronica Klaus. 

The clock is ticking. 
Ashes rain from the sky. Cassidy Hart must make a choice. 
What is more important? Victory, love or revenge?

Omega is the enemy's name. 
Survival of the fittest is their game. 

Cassidy Hart will not stop until she has saved California...but will she be too late? 



The world has gone nuclear, and the militias have met their first major defeat. 

Torn and desperate, Cassidy Hart and her team make a difficult decision to relocate their forces to the cold, barren wilderness of Alaska. Yukon City has become a stronghold for survivors of the apocalypse. 

Or has it?

Cassidy is on her own. Commander Chris Young remains in California to combat the shadowy forces of Omega, while Cassidy attempts to rebuild the militia's strength at Yukon City. Uriah True has ideas of his own when it comes to surviving, and the militias are splitting apart. 

Veronica Klaus is unleashing hell upon the west coast. The true, terrifying nature of Omega is revealed at last. A dangerous, desperate move is made to find reinforcements and seize a weapon that could give the militias an upper hand. 
The downside? 
It just might kill everyone on planet earth. 

Cassidy, Chris and their friends have made it this far. 
How much longer can they survive? 
How much longer can the world survive?

Barnes & Noble


Be brave. Be vigilant. But above all, be loyal. 

In the wake of a dangerous but successful mission to Yukon City in Alaska, Cassidy Hart now finds herself back in California, at the naval air station in San Diego. Together, she and Chris now face their most terrifying threat yet: nuclear destruction. 

Surviving in a world gone nuclear is easier said than done. Faced with the prospect of being wiped off the face of the earth by Omega's nuclear arsenal, Cassidy, Chris and their fellow rebel friends stage an incredible, daring journey into the Pacific Rim with the hope that they will be able to seize a weapon that could turn the tide of the war in the militia's favor. 

The clock of the apocalypse is counting down. 
Choices must be made. Relationships will be strained. True love will be put to the ultimate test. 
It's militias versus Omega. Hope versus destruction. 

Where does your allegiance lie? 

Choose carefully. 



The BESTSELLING conclusion to an epic adventure! 



This is it.

Cassidy Hart and her comrades have returned to their home: California, the final battlefield in the fight against the global terror, Omega. Commander Chris Young is in critical condition, the United States Navy has acquired new weapons, and the militias have just made a discovery that could change everything.


Faced with tragedy, heartbreak, and destruction, Cassidy is tempted to give up.


But she is a fighter. Defeat is not in her blood.


When confronted with the possibility of resurrecting the leadership of the United States of America, she will do anything to make the dream of stability a reality. She and Lieutenant Uriah True, along with the legendary strike team, the Angels of Death, undertake a dangerous and outrageous mission, unlike anything they have ever attempted. They will find themselves in the very epicenter of Omega’s stronghold.


Yet doubt remains. No one can be trusted in this dark new world, and their hope may not be as black and white as it seems. Disappointment and rejection cloud Cassidy’s judgment.


Friends will be lost. Tears will be shed. Sacrifices beyond the imagination will be made. The grim reality and bitter destruction of war will inflict one final sucker punch. 


The militias desperately attempt to hold their ground, and the Freedom Fighters will do everything they can to destroy the greatest evil this world has ever known.


The apocalypse has taken everything from Cassidy, but she will not stop until her heart ceases to beat, and until there is no breath left in her body.


She holds onto hope – hope of a future, hope of victory, and hope of love.

There is no going back. It all ends here.


Are you prepared?

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