Deadly radiation from a passing comet is about to destroy life on Earth. In desperation, the US government constructs a series of underground shelters to protect as many people as possible. They are expected to be underground for 20 years before returning back to the surface. But can they survive their time within the confines of the underground shelter? And what will they find when they finally emerge?

A global pandemic has devastated the world. Facing a rebuilding time of generations, two scientists come up with a solution: Send someone back in time to prevent the horrible accident that released the deadly pathogen on the world. The problem with their discovery? The time travel process is fatal to anyone trying it. The solution? Create someone with the ability to survive the transition across timelines.

The day that changed Melody's life was like any other over the previous two years. She'd found she had a gift for writing, and her career as an author had almost healed the pain of losing her job. When the Secret Service rang her bell, everything changed. Something was nearing Saturn…and it was slowing down. Had she been right about the object?

At the end of the world, a groundbreaking scientific experiment will change everything. Dr. Laura Reynolds had it all. A job she loved. The respect of her peers. Student debt she was slowly chipping away at. And one day, it all went away. She saw the wrong thing—a colleague's mistake. And to escape, he framed her. Laura's only option is to join a secretive research project in Antarctica, where she hopes to keep practicing medicine and one day get her life back. But soon after arriving, she realizes that things aren't what they seem in this advanced facility.

If you had the power to change things in the past for the betterment of yourself, your family, or the world, what would you do? Brian Partridge is a fan of all things science fiction, especially when a book or film is about time travel. One day after buying all of his favorite author's personal effects in an estate sale following the man’s death, he finds out just how this man of words managed to write about the past with such passion and detail. The truth was he had visited all those places using his very own time machine.