Angel knocks on Murph's chapel door, asks to use the bathroom, and writes her name in lipstick on the church wall.

Murph overhears a woman in St. Augustine frantically arguing on the phone with someone she calls Angel.

Summer's stolen boat capsizes after hitting a yacht's wake; Murph pulls her out of the dark water.

Over breakfast, Murph shows Summer a photo of Angel; Summer confirms the girl is her daughter and weeps.

Murph and Summer board the abandoned Sea Tenderly and Murph explains how trafficking networks lure and kidnap young women.

Tabby leads Murph to an unconscious man in a baseball stadium; the man wakes, introduces himself as Clay Pettybone, and joins the journey.

Murph finds a young girl named Ellie hiding on his boat; she has a photo of Murph and a bank deposit box key.

Murph and Summer board Fire and Rain, find videos of trafficked girls, steal two hard drives, and fight their way off the yacht.

Angel calls Murph sounding heavily drugged from a cabin; Bones traces the call to a location a few hours away.

Murph and Summer reach the cabin only to watch girls loaded onto helicopters; a hidden camera phone reveals they were set up.

Sister June leads Murph and Ellie to a cottage bedroom where a frail woman is revealed to be the living Marie.

Marie tells Murph that Ellie is their daughter; Murph receives a video of Summer drugged on a boat and rushes out.

Murph swims to the Pluto yacht, triggers explosions, and leads kidnapped girls to safety, but Angel is not among them.

Murph finds Angel tied up at the Loggerhead Key lighthouse and, with help from Summer and Gunner, subdues her captor.

Marie begs Murph for forgiveness in her final moments; he gives her communion and baptizes her as she dies in the ocean.

Murphy Shepherd, a government operative living in a Florida chapel, meets a 16-year-old girl named Angel who has been lured onto a trafficking yacht. After Angel returns to the yacht, Murph begins sailing south and encounters Summer, Angel's desperate mother, whom he rescues from a capsized boat. Together with Clay, an older man they meet along the way, and a mysterious young girl named Ellie, they track the traffickers' yachts down the Florida coast, gathering evidence and narrowly missing the kidnapped girls at each turn. Murph ultimately raids the traffickers' yacht, rescues a group of kidnapped girls, and finally locates Angel at a remote lighthouse. The mission ends with the shocking revelation that Marie, Murph's long-mourned wife, has been alive all along and is the mother of Ellie. Murph gives Marie her last rites as she dies in the ocean, bringing closure to years of unresolved grief.

The race to rescue Angel from human traffickers.

The fictional Bishop gives Fingers his last communion on a burning yacht as the dying Fingers asks about biblical sheep.

Murph spots a white labrador paddling alone in a river and pulls the dog aboard his boat.

Murph spends hours pulling oyster shells from Summer's wounds and bandaging her cuts, then leaves her overnight with the dog.

Clay reveals Angel was in danger on Sea Tenderly and describes the traffickers' new yacht, called Fire and Rain.

Murph holds Summer's hips in the water at Haulover Canal, teaching her to swim for the first time.

Murph gives Ellie his Rolex watch as a promise he will return, then leaves with Summer for West Palm Beach.

At the Jupiter morgue, the covered body is not Angel; Summer collapses with relief in Murph's arms.

Murph forces his way through a steam-filled bathroom in the traffickers' mansion and finds Casey barely alive in a bathtub.

Casey recovers in the hospital and tells Murph that Angel saved her life by placing her in a bathtub of ice.

Murph chases the traffickers' new yacht through a storm and pulls an overboard girl to safety while Gunner is lost in the water.

Summer kisses Murph twice on the shore before he goes back out into the dark water to search for the yacht.

Murph returns to the Key West hotel to find Clay injured on the floor and learns Ellie has been taken.

Ellie screams the word 'Daddy' from the street while being pursued, driving Murph to run faster after the antagonist.

Murph and the antagonist fight in a parking garage until Clay arrives and knocks the man unconscious with one punch.

Murph sails north with his editor and spreads Marie's ashes in the ocean where they first met as children.

Before Murph meets Summer, his mentor Fingers dies on a burning yacht in the book's prologue, establishing the life-and-death stakes of Murph's world. The journey south brings unexpected companions: a stray dog that leads Murph to the terminally ill Clay, and a series of encounters that slowly fill in the picture of what the trafficking ring has done. Along the way, Murph trains Summer to swim, tracks down survivors like Casey, and narrowly rescues a girl thrown overboard during a fierce storm while Gunner is temporarily lost. Summer shares her first kiss with Murph on the darkened shore, and the group steadily closes in on the traffickers through grief, determination, and growing trust. The final stretch brings a desperate fight in a parking garage and Clay's decisive intervention, proving that every member of their unlikely group has a role to play. The novel closes with Murph completing his grief by spreading Marie's ashes in the ocean where they first fell in love as children.

The supporting moments and hidden heroics that shaped the journey.

Murph inputs his phone number into Angel's phone under the name ICE—Padre before she returns to the traffickers' yacht.

Summer tells Murph she has read the same 13-book David Bishop series over 27 times; it helped her survive opioid addiction.

Murph admits to Summer he has spent years hunting traffickers, having found and saved 99 of 113 missing girls.

Ellie opens the bank safe deposit box and a ring falls out that Murph instantly and visibly recognizes.

Summer tells Murph how a man facilitated her opioid addiction, racked up her debt, then wiped it clean in exchange for Angel.

Murph concludes the traffickers deliberately caused Summer's ankle injury and manufactured her addiction as a calculated scheme to reach Angel.

Reviewing the hard drives, Murph discovers geolocation data in the traffickers' videos points repeatedly to the same Palm Beach mansion.

Murph uses his real name David for the first time while recounting his wedding and Roger's devastating betrayal at the reception.

Marie appears at Murph's hotel on their seven-year anniversary, confesses to faking her death by suicide, then vanishes by morning.

Bones finds a drunk Murph at Key West's southernmost point and challenges him to choose between love and lasting bitterness.

Murph wades into the Key West ocean and pours the ashes of his burned novels from the orange case into the water.

Summer walks Key West streets as bait; a man approaches and Clay identifies him as connected to the trafficking ring.

After learning Bones withheld knowledge of Marie's survival throughout their search, Murph grabs Bones by the throat and lifts him off the ground.

Murph etches both the names Murphy Shepherd and David Bishop into the wall of his chapel.

Bones shows Murph a newly kidnapped girl and demands he choose between staying with Summer or taking another mission; Murph chooses the mission.

From the moment Murph slips his phone number into Angel's phone, a series of quiet revelations slowly unravels who he truly is and what he has been hiding from everyone around him. Summer's love of the David Bishop novels unknowingly connects her to Murph, while the bank deposit box ring and the letter inside begin to expose a secret he has carried for years. The truth about how Summer was deliberately targeted and manipulated adds fury to their mission and deepens the emotional bond between her and Murph. Murph finally opens up about his shattered marriage, Marie's staged death, and the years of grief that drove him to write, drink, and ultimately dedicate himself to saving the lost. The burning of his novels and a furious confrontation with Bones represent Murph releasing his past and stepping toward a different future. The novel closes with Murph and Summer finally confessing their love, but the call of one more mission proves impossible for Murph to refuse.