Banished from their world with his memory wiped, Ultimate Fighter Cade Shepherd doesn't remember his life as Gage Dempsey, not even the woman he nearly died for. But when Embry Hollister's father is kidnapped by military scientists, the only one she can turn to for help is the love from her past. Will Gage remember the Shadow Walker skills he learned from her father, and if they survive, will Embry be able to walk away a second time?