Paired together as childhood pen pals, Sebastian Vaughn and Julia Bessette grow up writing back and forth. Even though they live worlds apart, their lives intersect in ways that no one could ever imagine. As young adults, their paths initially cross, when a concerned Sebastian pays heartbroken Julia a surprise visit. The two spend only a few short days together, but the spark is undeniable. However, tragedy comes in all forms, and soon they're separated. Fast forward a few years, and fate finds Army Captain Vaughn in a dangerous situation, where he's forced to go into hiding. Out of desperation and a primal need to be near her, he unintentionally drags Julia into his treacherous world. Feeling responsible, he vows to protect her above all else, but will the cost be too high? Meanwhile, Julia willingly goes on the run with Sebastian, sacrificing her way of life, and her safety, for the man she hopes is the one. She worries about his rejection, but more so than that, she worries about never again feeling the way she feels when she's with him. Can the couple make it out alive? Can they find each other in the process, or will it all be too much to bear?