After a blissfully 'normal' week now Gabe is dead, Vincent and Cat hope for a regular life as lovers, he even proposes marriage and resumes medical work as ER doctor. JT, who has trouble accepting his 'undeserved' recovery due to the mysteriously delivered serum cure he still hasn't analyzed properly, must face Tess and her macho cop brothers but counsels Vince to overcome his 'primal brain' urges, yet commitment issues keep bringing him close to turning beast, dumped bride Heather further traumatized him with a shower incident. Homeland Security agents keeps asking help to deal with novel types of beast running hack in New York before meeting strange deaths, but Cat keeps that from Vincent far too long. When genetically 'electrified' Tyler Zane attacks the agents, killing one, and beleaguers JY for the serum, beastly reality catches up.
—KGF Vissers