Cat fears Vincent must die in order for Gabe to be stopped in the Season 2 finale.
Gabe tries to woo Cat by taking her on a romantic date.
Agent Knox's offer to Cat and Vincent for a normal life together is accepted, but influences out of their control work against them.
To force Vincent out into the open, Gabe suspends Cat and Tess from the force. In the midst of all this, Heather shows up for a surprise visit.
Vincent and Cat try to hide out when they become the object of a city-wide manhunt. The FBI gets in touch with them to ask for help on a significant case.
Cat and the gang do their best to clear Vincent's name after he's arrested for murder. But, when they find out who turned him in they recognize they have bigger problems.
Cat and Vincent must revisit a romantic destination from their past in order to prevent Sam from obliterating a large group of people and to figure out Sam's true agenda. The destination enables Cat and Vincent to remember how in love they once were.
Cat needs to choose between Vincent and Gabe. But her decision gets complicated when a compromising situation arises while working with Vincent to save Sam's latest victim.
Cat and Vincent work together to find Gabe's missing acquaintances. Vincent sees what his life might have been when he returns to the hospital where he interned.
Trying to track down Sam's captor has Kat and Vincent working together on Valentine's Day. Being with Vincent again has Kat wondering whether she really wants to be with Gabe.
After J.T. is kidnapped, Cat and Vincent have to work together to save him. Tori tries to intercede but the results are deadly. When J.T. is rescued, a man from Agent Landon's past is also rescued, and he just may have some knowledge about Vincent's beastly past.
Cat, Tori and Tess become hostages when some criminals want to steal a rare necklace that Tori possesses. Although Vincent is their only hope, helping them could reveal his true identity to the police.
While Cat is undercover for the FBI, Vincent reveals he is still alive on a national talk show. Searching for more information about his beastly beginnings, Vincent runs into Cat in the middle of a heist leaving them no choice but to work together.
A new mystery is revealed when Cat helps protect Tori in order to prevent Vincent from additional injuries. Gabe and Cat grow closer when Vincent's efforts to get involved lead to life changing results.
While Cat and Vincent can't agree on how to deal with Agent Reynolds, Vincent starts to question his humanity. A move made by Cat will change their relationship forever.
To protect Vincent and get information on his missions, Cat invites him to celebrate Thanksgiving with her bio-father, Agent Reynolds. But, secrets and true feelings surface when Gabe and Tori join them. Elsewhere, Tess and J.T. celebrate Thanksgiving together.
Vincent has to kidnap the daughter of one of his beast targets after he neutralizing her father but she may turn out to be the key to ending his missions. Cat confronts Agent Reynold about being her biological father and the mysterious part he's played in her life.
Cat attends her high school reunion and finds out more about her past. She's also threatened by a beast searching for Vincent. An old military pal with a dangerous secret meets up with Vincent.
Cat is putting distance between herself and Vincent. So, when Gabe gets no help from Cat in tracking down a new beast, he turns to Vincent for help. When Vincent decides to deal with the beast on his own, he finds he needs Cat's help and that of someone from his past.moreless
Keeping their true agendas hidden, Cat and Vincent follow a strange beast. Heather tells Cat about their father while Tess wants to know the real reason Gabe is helping Cat.
J.T., Tess and Gabe get together to help Cat after Vincent kidnaps her when she digs too deep to find information about his mission.
Gabe has recovered from his ordeal, but Catherine's obsession with finding Vincent has Tess and JT worried. After three months they finds Vincent only to discover Muirfield has wiped his memory. Catherine hasn't contacted Heather is quite a while which leaves Heather thinking she's the only one with the secret of Cat's paternity.moreless