As the child grows inside of Catherine, Vincent begins to have strange dreams. He doesn't know what they are at first, but eventually he figures out that they are related to Catherine. He begins to look for her again. Meanwhile Catherine goes into labor. She tries to hide it by not making any noise. Eventually her captors figure it out and tie her down in a chair to deliver the baby. Vincent has entered the building where she is. Now all he has to do is find her. Catherine gives birth to a little boy. She begs to see him as Vincent frantically searches for her. They refuse to let her see the baby. They take the child and escape after they have given her a shot of poison that will kill her. Just as the helicoptor takes off Vincent reaches the roof, but he is too late. He still hasn't found Catherine. Suddenly he turns as he hears her call out to him. He runs to her as she begins to fall. She tells him that there is a child. He seems surprised, but now he knows that he is a father. As sh

A subway slasher that kills with claws and leaves the victims looking as if they were mauled by a bear is on the prowl. When Catherine finds out about the case she starts to suspect Vincent, as she remembers how he rescued her from the attackers in the safe house.

Catherine falls for megabucks developer, Elliot Birch. Elderly people are being thrown out of their homes.

Vincent is blinded after an explosion and must escape a street gang that is holding him hostage. Once he is free he must find his way home.

Halloween night Vincent goes above to meet an Irish writer named Brigit O' Donnell. Halloween is the only night that Vincent is safe above. Catherine is at the same party. Eventually, they wind up spending the evening together as Catherine shows Vincent her world.

Catherine has a nearly fatal confrontation with an ex-tunnel dweller, named Mitch Denton.

Vincent and Catherine prepare gifts for the celebration of the anniversary of the day they met. Joe is distracted by a beautiful woman named, Erica Salvin.

While exploring a section of the tunnels Mouse discovers a treasure ship. Cullen's greed brings strife.

Catherine prosecutes a case of fatal child abuse. The wife won't testify against her husband.

Rich kids kill young prostitutes for fun.

Elliott goes to Joe's apartment (#751) because Joe's on a leave of absence from work in order to stop him from investigating Catherine's death. Elliott gives Joe the address of the building where Catherine was killed (1900-6th Avneue, tower off of 53rd Street) and warns Joe not to trust Moreno, the current D.A., because Catherine was betrayed by someone working in the D.A.'s office and because Moreno put Joe on a leave of absence and insisted that Joe stop investigating Catherine's death. That night, Joe goes to Moreno's office and accosts him. He also throws the address out at Moreno and gets a reaction! Moreno meets Gabriel and tells him about Joe's accusations. Moreno tells Gabriel that he'll handle Joe and dispose of Elliott Burch himself. Private investigator Cleon Manning (working for Elliott) is killed by Gabriel's hitmen as a warning to back off the case. Elliott has his first meeting with Vincent at the abandoned carousel in Central Park. Diana goes to Catherine's apartment and finds the secret entrance to the 'threshold Below' in the sub-basement of the apartment building. Diana brings the withered rosebush from Catherine's apartment back to her own.

Vincent begins to have nightmares about a bad snowstorm reaching the tunnels. No one wants to listen because the tunnels are too far below ground to be touched by the weather. Vincent continues to worry. Finally he figures out that Gabriel has sent a man to try and kill him. The man's name is Snow. This is what Vincent has seen. Vincent leads Snow into the catacombs to confuse him. Snow fires and with a lucky shot hits Vincent. But the wound is not fatal. Vincent eventually kills Snow. He removes the ring from Snow's finger. Gabriel has a matching ring. He carries his body back to the top of the building where Catherine was killed. As he stands there he holds both arms up in the air and screams the name of Gabriel into the night.

Diana flees from Gabriel's goons. Vincent surrenders himself to Gabriel and is locked in a cage. To torment Vincent Gabriel begins to show him footage of when he was trying to find Catherine. When he thinks that Vincent has been tortured enough he changes it to films of Vincent's son. This is the first time that Vincent has ever seen his son.

Father recieves a letter from an old flame and goes above to see her. The woman's name was Jessica. Father even considers staying above permanently. Helpers are being killed by strangers.

The son of a past cave-in victim wants revenge on Father. He tries to bury him alive.

Catherine Chandler comes from a rich family and works for her father’s law firm. After leaving a party early, she’s mistaken for someone else and is pulled into a van full of thugs. They slash her face and beat her up, then push her out of the van, leaving her for dead. A shadowy figure appears and carries her to secret set of forgotten tunnels below the city.

Vincent is captured and held hostage by two scientists who stick him in a cage. Catherine considers a new job in Providence.

Father's past is revealed when he goes above for the first time in over thirty years to see a friend. When he gets to his friends office he finds his friend is dead. Father is then charged with murder.

An investigation into the mysterious death of a wealthy business man leads Catherine into the world of voodoo. After her apartment is vandalized and she is terrorized, Vincent seeks the aid of Narcissa in an attempt to understand what is happening to Catherine.

Vincent alerts Catherine to possible wrong-doing at a well-known, renowned orphanage.

Laura, a deaf-mute tunnel dweller, witnesses the murder of a police officer, for which another man is framed.

Attempting to aid an injured child (Eric) in the Maze, a cave-in traps Vincent and Father. Catherine, after facing Elliott Burch, who has agreed to be a witness against an extortionist, senses something is wrong and rushes to the tunnels.

"Romeo and Juliet" are in Chinatown. An angry Tong invades the tunnels with his army.

Paracelsus, a former friend of Father's, sells an hallucinatory drug in the world above.

Vincent's foster brother, who is also Father's son, Devin, returns to the tunnels after a 20 year absence.