Beauty and the Beast

With the happy couple seeming to be enjoying an ordinary life, Vincent thinks the timing might finally be right to pop the question until Cat stumbles on an extraordinary case with the FBI involving somebody who goes on a superhuman rampage.

Vincent moves in with Cat which forces them both to address the rapid changes in their relationship while they investigate a shocking new lead in their hunt to track down who is behind the super-human experiments.

When two married agents from the FBI take over an investigation, Cat and Vincent hope they are seeing a future version of themselves but fear their work schedules are jeopardizing their relationship.

Cat and Vincent take their relationship to a couples counselor when Cat dives into her work and suspects a wealthy transplant recipient of being involved with the mysterious experiments on innocent people in the city.

When Cat is assigned to a new partner by Tess, she begins to suspect that Bob and Carol have re-surfaced to separate her from Vincent and hunt them both down. Meanwhile, a transformed JT discovers that his newfound healing ability comes at a cost.

JT throws Vincent a surprise bachelor party. Unfortunately, it is interrupted by a mysterious sniper with his sights set on putting a stop to Vincent and Cat's interference with the super human experiments.

When an unstoppable assassin hunts down Cat and Vincent, they attempt to lure him out of town and away from their loved ones with the ruse that they plan to elope.

Cat is excited to finally walk down the aisle with Vincent, but can't help worry that the rash of superhuman experiments will ruin her destined moment.

After a force more powerful than anything they have ever encountered ruined Cat and Vincent's big day, Cat becomes convinced they are in over their heads and begins to doubt their ability to stop the threat

Cat and Vincent make it their mission to capture Liam, they find information about a Patient X that they might be able to use to help them find him. Meanwhile, JT and Tess work to confirm that JT is serum free.

In a surprising turn of events, Vincent agrees to help Liam on a mission to retrieve evidence that could expose them both. Meanwhile, a suspicious Cat discovers something about Liam's family history and must warn Vincent before it is too late.

Liam's shocking history makes Cat delve deeper into the Ellingsworth family, where she learns of their tragic past. Vincent and Cat realize that they will need to use their secret weapon if they want to take Liam down.

Cat and Vincent will be forced to work together as a couple in ways they never have before if they hope to defeat their destined foe in Liam, who will do everything he can to expose Vincent as a beast in order to destroy their love.