Remnants of Tomorrow brings all the factions together. The royals, the shiners, the rovers and the everyday workers of the dome as they fight against each other and the inevitable. It is time to leave the dome. Wren's father takes her on a journey through the dome where she sees the after effects of the destruction caused by her friends and the blue coats that came into the tunnels. What he doesn't realize is that instead of subduing her, he is giving more purpose and fuel to her cause. When he realizes his plan has backfired, he sells Wren and her friends caught inside to the rovers. They manage to escape and add more fuel to the hatred between the rovers and the dome. Wren and her friends from inside the dome and America are caught in the middle as the battle escalates and whoever wins the battle wins the right to life. It's up to Wren to make both sides see that the only way they can survive is by working together.
Wren MacAvoy works as a coal miner for a domed city that was constructed in the mid-nineteenth century to protect the royal blood line of England from a comet on a collision course with Earth. But after nearly two hundred years of life beneath the dome, society has become complacent and the coal is running out. Plus there are those who wonder, is there life outside the dome or is the world still consumed by fire? When one of Wren's friends escapes the confines of the dome, he is burned alive and put on display as a warning to those seeking to disrupt the dome's way of life. But Alex's final words are haunting, "The sky is blue." What happens next is a whirlwind of adventure, romance, conspiracy and the struggle to stay alive in a world where nothing is as it seems. Wren unwittingly becomes a catalyst for a revolution that destroys the dome and the only way to survive might be to embrace what the entire society has feared their entire existence.
Wren's world has changed. The thing that she fought for, escaping the dome has come to fruition, but it's not the paradise she thought it would be. Most of the shiners have died, and according to James, she is to blame for many of the deaths, a burden which sits heavy on her shoulders. Still some have survived and Wren is determined to keep them safe as they fight to establish a home outside while hiding from the rovers who have weapons that can kill from far away. But as long as she has Pace she knows everything will be fine. Still Wren wonders, as she sees the smoke that continually pours forth from the dome, how did her friends inside fare? Will they ever find out if Lucy, David, Jill and Harry, along with Pace's mother survive the explosions? Meanwhile, someone else has also seen the smoke. A band of explorers from across the sea arrive in an airship, curious about the dome, and offering help to those who survive. When Wren meets the handsome Levi Addison, she suddenly questions her love for Pace as Levi offers to show her the world from his airship. Does she really love Pace? Or was it just the circumstances that made her think she did?
Meanwhile, word arrives from inside via Pip, and Wren is forced to go back inside the dome, a thing that terrifies her more than anything else, to save her friends. Once she's back inside will she be able to escape again?