Fasten your seatbelts for this intense conclusion to "On the Brink". Recovering from wounds suffered in New York, Blake Ryder follows his wife's suggestion to recuperate back home in Sitka, Alaska. What she doesn't know is that, aside from bald eagles and humpback whales, Blake has no love lost for his ancestral home. While trying to unravel the mystery of her husband, Sophie Carter unwittingly entangles him in a homegrown enigma. To both their surprises, the effort of ironing out the puzzle is just what Ryder needs to get back on his feet, and just in time, too. Upon their return to New York, it appears that life couldn't get better for the couple. For the first time, Ryder and Carter are pleased with the lot they've drawn, bringing into their home a child that all but drowns out the sins of the past. When Jack McCall's associates rear their heads again for one final strike against Ryder and Carter, they will go to any lengths to protect their new family, even if it means teetering precariously at the brink.