Holden Matthews miraculously wakes up from a devastating coma to the wonderment of his parents Tom and Diane and younger brother Luke. But the world has changed since Holden went to sleep, and he now has to navigate being an adult when all he remembers is being a child. At the same time, Holden is experiencing abilities and memories he can't explain, and a mysterious woman named Willa warns him not to trust those around him. When a sinister stranger attacks Holden and claims he knows about his new powers, Holden is faced with uncovering just what happened to him while he was in a coma.
Holden attempts to forget about his recent bizarre encounters and lead a "normal" life. Luke tries to help Holden acclimate to his new surroundings and brings him along to a college party. Holden hits it off with a friendly co-ed, but strange memories of Willa lead to disastrous consequences. Meanwhile, Diane and Tom try to bond with Holden as an adult.
Holden continues to try to fit back into his life and learns how much things have really changed while he was in his coma. He seeks an explanation for his new powers and agrees to a scary undertaking to learn more about what happened to him. His first real memory of where he was during his coma proves to be too much for Holden to handle.
Holden is determined to learn more about the mysterious man who is after him and teams up with a former adversary turned unlikely ally. This pursuit leads Holden to some shocking evidence and a vital clue. The Matthews are unnerved when Jeff, the person they feel is responsible for Holden's accident, continues to show up in their lives. Luke continues to struggle with his place in the family, now that Holden has returned. Meanwhile, Willa makes a dangerous move while trying to help another comatose patient; and Holden has an awkward encounter when he decides to ask a girl out on a date for the first time.
Holden seeks out Luke in a rejection of all things Realm and ventures out on his very first date with Jamie.
Now that Holden remembers what happened during his coma, he decides to make a fresh start. The surprising arrival of another coma survivor, Charlie, makes Holden question his allegiance to Willa and Arthur.
Holden and Charlie go on an escapist road trip to work on controlling Holden's powers - and grow a lot closer in the process.
Jeff fights to keep Holden alive and seeks refuge at a pharmacy, pursued by the relentless Yellow Jacket.
A cornered Holden is lured into helping Frost achieve his decades-long ambition of reaching the Bridge. Jeff, Willa, and Luke join forces and race to rescue Holden from Hollow Sky before it's too late.
Holden reluctantly agrees to personally escort Frost into the Realm.