Summary:While walking above one night, Vincent spots an ex-tunnel dweller named Rolley, who grew up in the tunnels and was known for being a piano prodigy but has since abandoned the tunnels and has become a drug addict. Vincent calls on Catherine to assist him in helping Rolley and tries to get him to come back to his friends down below but his guilt over the death of his piano teacher may not allow him to return.

Summary:Catherine longs for Vincent to escort her to a secret hidden place that she had as a child in Connecticut. Vincent soon realizes that there is too much danger if he were to venture above. Angry and distraught, he begins having visions of an angel who takes him on a journey of what life would have been like if he had never existed.

Summary:Vincent rescues a Russian sailor name Dimitri, from drowning and brings him to the tunnels below to recuperate. However, little does anyone know, Dimitri is carrying the pneumonic plague which soon becomes an epidemic amongst the residents of the tunnels and begins taking lives.

Summary:Vincent invites Catherine to Winterfest which is a grand celebration to those who live below and their helpers who live above. As everyone prepares for the celebration, Paracelsus prepares in seclusion to crash the event and hopes to get the ultimate revenge for being exiled so long ago.

Summary:While working at a help hot-line, Catherine encounters a prostitute who is pregnant and has no one to turn to for help. Catherine meets her and brings her to the tunnels where she gives birth to a baby girl. However, her stay in the tunnel world may become complicated when she falls in love with Vincent who does not know how to respond to her advances.

Summary:Catherine has been working to put the leader of a deaf street gang behind bars. She is stunned to learn that Laura, an ex-tunnel dweller has fallen in with the gang and has fallen in love with a fellow gang member, who just happens to be an undercover cop working with Catherine.

Summary:Father and Vincent are proud of Michael, a young man who grew up in the tunnel world who is leaving to attend college above. Michael moves in with Catherine temporarily until he gets settled in on campus and in the meantime he slowly begins to fall in love with her. Vincent soon must deal with jealousy issues of not only being able to go to college but of the blossoming love that Michael feels for Catherine.

Summary:Brian is an unhappy young man whose parents are going through a divorce. He is also a avid player of Dungeons and Dragons and one evening spies upon Catherine and follows her to the basement and sees her enter into the tunnels and follows her down. Soon the Father, Vincent and the rest of the tunnel dwellers must decide just what to do with Brian.

Summary:Devin, who had been working with a carnival, returns to the tunnels with a guest, a man named Charles, who suffers from elephant mans syndrome who had been imprisoned by his brother as part of the carnival sideshow. Devin brings him below where he knows that he will be safe and Charles soon befriends Vincent but must face the reality that the tunnels may not be where he belongs.

Summary:Kanin has been living in the tunnels for the past 16 years and is now happily married to Olivia and they have a son together. However, Kanins past slowly comes to the surface when a file crosses Catherines desk and she must debate whether or not to turn him on DWI vehicular homicide charges.

Summary:The tunnels becomes a place of danger when a murderous "family" appears and quickly makes a move to take over by beginning to murder other tunnel dwellers. This prompts Vincent to face his inner beast and he must come to terms with the fact that he will most likely have to kill some of the outsiders when worse comes to worse.

Summary:Catherine gets bad news when she learns that her father has had a stroke. As he lingers near death she reveals to him her secret about Vincent. Later, after his death, Catherine falls into a deep depression and decides once and for all to leave her life above and move below to be with Vincent.

Summary:A world renowned ballerina and ex-tunnel dweller, named Lisa Campbell has come to New York for a series of performances. She quickly makes contact with Vincent which opens old wounds, as she was his first love and his insecurities about himself slowly come to the surface. Meanwhile, Catherine begins investigating Lisas past which quickly puts her in great danger.

Summary:While shopping in a bookstore, Catherine has a strange encounter with a man who begins following her around New York. When she confronts him, she learns he is an artist named Kristopher Gentian. However, when strange things begin to happen, both Vincent and Catherine begin to wonder if the man is really an artist or a ghost.

Summary:Catherine and Vincents second anniversary celebration is interrupted by an anonymous caller who lets her know that hes watching her and whats more he has seen Vincent. Not wanting to get the police involved, Catherine soon finds herself at the mercy of her own fear when she realizes "The Watcher" has been in her apartment.

Summary:Catherine must travel to Los Angeles to gather information and interview a woman who may be involved in a murder case. Reluctant to leave Vincent, Catherine finally decides to go which puts their bond to the test. As Catherine becomes involved in the case in L.A. she soon runs into danger and Vincent is powerless to help her in New York.

Summary:Catherine and Joe have been working on a case involving a high power Wall Street celebrity whose child abuse turned deadly which resulted in the death of his son. Catherine is named the prosecutor in the case and she soon must deal with the challenge of trying to get the childs mother to testify against her husband.

Summary:Elliot Burch has returned to New York and finds that his life his in danger. It seems a death squad has followed him to New York due to dirty dealings that he was involved in Central America. He soon gets Catherine involved who puts her own life on the line to help him.

Summary:Two rich kids have been targeting and murdering prostitutes for fun. Late one night, Vincent witnesses their latest murder and is unable to stop them. Catherine soon puts together a case against them but has a hard time putting them away. Meanwhile, Vincent has set on his own to put an end to their madness.

Summary:Catherine is attacked in the park by two men disguised as policemen. Naturally, Vincent comes to her rescue but it soon becomes apparent that this event was a setup to get Vincent out in the open and has all been orchestrated by a shadowy figure who has hired an investigative reporter to uncover the existence of Vincent.

Summary:Following the death of investigative reporter, Bernie Spirko, Elliot Burch and Catherine set out to find the man who hired and killed Spirko. Little do either of them know that the man they are seeking is Paracelsus and he has set into motion the next stage of his diabolical plan. He lies to Vincent about his birth which brings Vincent to the verge of madness.

Summary:Following the ordeal with Paracelcus, Vincent moves forward toward a stress-aggravated mental collapse. Vincent continues to come to terms with the beast in himself and finds himself losing control of his thoughts. He finally decides to go into seclusion into a deep chamber far back through the catacombs where madness takes over his mind. Meanwhile, Catherine, Father and the rest of tunnel dwellers try to find some way to help Vincent.