In "Something’s Gotta Give," Cat suspects she might be pregnant, adding emotional weight to their survival. Episode 5, "It’s a Wonderful Beast," features a pivotal dream sequence where Vincent explores what Cat's life would have been like if they had never met.

Vincent is captured and forced to undergo tests by the mystery buyer. The series concludes with " Au Revoir ," where Cat and Vincent must make an ultimate sacrifice to stop a final attack and ensure their future together. Themes and Fan Reception 4x13 Review: Au Revoir - seeds & sparks

The couple faces a DHS manhunt and a nosy reporter, leading them to finally admit that life as "normal" citizens might be impossible.

Following their long-awaited rooftop wedding in Season 3, Season 4 begins with Vincent (Jay Ryan) and Cat (Kristin Kreuk) attempting to enjoy a honeymoon in Paris. However, their "wedded bliss" is short-lived when they learn that someone is actively hunting "beasts" to expose their identities to the world.

The fourth and final season of the CW’s (2012–2016) serves as a dramatic conclusion to the reimagined love story of Catherine Chandler and Vincent Keller. Spanning 13 episodes , this season focuses on the couple's transition into married life while being pursued by a new, mysterious threat. Season Overview: The Final Chapter