Vanessa and Sam face off to find the Last Elder, with Scarlett, Axel and Mohamad caught in the crossfire; Julius fights the Sisterhood; Doc unlocks the secrets in the Dark One's blood.

Scarlett is reunited with Axel but he is badly injured before they can find Vanessa; a mysterious man helps them find their way; Flesh and Jolene are fugitives on the run from Blaktek.

In his hometown, Axel fights both his tragic past and a vicious pack of Daywalkers; Sam can't find Mohamad and takes his anger out on Chad and Mike.

Vanessa, trapped in an abandoned slaughterhouse, wrestles between the light and dark sides of her own self before she can move forward on her path to find the Final Elder.

Doc and Jolene clash with Denver authorities over the repellent; Flesh chooses to face his past; Axel struggles with leaving Scarlett behind; Ivory and the Sisterhood infiltrate Denver.

On a distant island, Vanessa and Scarlett battle the Third Elder; Vanessa makes a choice about her path forward, one that Scarlett does not agree with.

Sam moves closer to his destiny; Mohamad tries to free himself from imprisonment; Axel escorts San Francisco survivors to Denver; Ivory and Scab take control of the Daywalker horde.

Vanessa has a final showdown with the Second Elder in San Francisco; in Denver, Flesh, Doc, Julius and Jolene learn that even in a Safe-Zone, life isn't easy.

In San Francisco, Vanessa, Scarlett and Axel find and battle against the Second Elder's forces; in Denver, Flesh, Doc, Julius and Jolene rejoin American civilization as best they can.

Sam comes to realize his dark destiny and tries to groom Mohamad to be a worthy partner; Scab and Ivory are bestowed Daywalker powers and return home to find the Sisterhood in ruins.

Vanessa relives the memories of her ancestor, Lily Van Helsing, in Colonial Hong Kong; there, she learns to control her dark side and fights the B'ah, the second vampire Elder.

To find its totem, the First Elder brings Vanessa, Scarlett and Axel to an abandoned insane asylum protected by powerful vampires, where they discover the legacy of a long dead Van Helsing relative.

Vanessa is once again resurrected and must confront her family's legacy; Axel, Scarlett and the others fend off Blak Tek's forces, who hope to add Scarlett to their list of lab rats.

At a mountain stronghold, secrets of the Van Helsing family are unearthed and the true face of evil is exposed; a climactic battle between humans and vampires leaves humanity's fate in question.

While the rest of the group fight for survival, Axel and Scarlett defend a mountain stronghold against a relentless foe; Doc makes a medical discovery that could change everything.

Sam and Mohamad's shared past comes back to haunt them in more ways than one; at a secluded campsite in the woods, friendships are put through a baptism by fire.

A mystery unravels when an organization fighting to find a cure for vampirism enlists the help of someone in the group; old loyalties are put to the test with deadly results.

A tense standoff between law enforcement and the survivors erupts into a bloodbath; in a bid to evade a vicious breed of vampire, Axel and Scarlett find themselves hunted like prey.

As the group struggles with the disappearance of one of its own, they accept sanctuary in a town run by its Sheriff and his troops; Dmitri inches closer to achieving his darkest goal.

Vanessa faces off with Dmitri; Axel fights against becoming a full-fledged vampire; Sam tracks Mohamad, Flesh and Lucky; Scab tries to enlist a fierce group of vampires to join Dmitri.

Vanessa's past rushes back to confront her in an unexpected way; a secret is revealed that Doc has been protecting; in a bid to bolster his power, Dmitri sends Scab on an impossible mission.

Wynonna Earp has been away from her hometown, Purgatory, for years but returns to reluctantly take on the role that Wyatt Earp's heir is destined for -- demon protector. Her task is to take out Revenants, the resurrected souls of the criminals who were taken down at one time by her great-grandfather. Wynonna teams up with sister Waverly, agent Xavier Dolls and Doc Holliday, the cursed-with-immortality best friend of Wyatt Earp, as they work to stop the Revenants from taking over Purgatory and escaping into the world. The show is based on the graphic novel series of the same name.

When civilization reaches its apocalyptic end, the Copeland family survives the end of the world as they know it, but what will the new world be like? Turns out it's scary, with supernatural creatures, massive storms and a plague among the things that the Copelands must deal with while facing the rapid decline of the new civilization around them. Patriarch Joshua's study of world cultures comes in handy when he has to help his family survive in the new world as wife Karen, a former Air Force pilot, draws upon her combat skills and survival training to protect her loved ones.

Several years since a zombie virus swept across America, there's only one person -- who goes by just Murphy -- known to have survived the infection -- the world's last hope at creating a vaccine. The last functioning viral lab needs blood from him for its antibodies, but the facility is in California and the man is in New York. A ragtag group of strangers works to transport him to the West Coast, but his dark secret remains hidden, which could threaten everyone. Hammond and his second in command, Garnett, initially lead the group of the living -- later replaced by Lt. Warren -- and computer hacker Citizen Z helps everyone navigate through the zombie-infested terrain. When the group meets a man in Colorado, he offers to take Murphy the rest of the way to California. When nuclear weapons are launched, people head into survival mode and become desperate to find a cure.

Dr. Ephraim Goodweather, the head of the CDC's New York-based Canary Project, is called upon to investigate when an airplane lands with everybody on board dead. What his team discovers is a viral outbreak that has similarities to an ancient strain of vampirism. As the virus begins to spread, Goodweather works with his team and a group of the city's residents to wage a war that could hold humanity's fate in its hand. The show's executive producers include Oscar-nominated writer Guillermo del Toro and Emmy-winning producer Carlton Cuse.

When an earthquake unleashes dangerous paranormal forces, the beliefs and biases of humankind face a reckoning. Roman Mercer, a troubled medium and local pariah, must fight figurative and literal demons to stop a mass haunting in his remote Alaskan town of Port Moore. The prejudiced townsfolk stand in his way, unable or unwilling to see the threat -- at least, until the unexplainable and horrific incidents become too dire to overlook. Mercer's psychic abilities may prove to be the people's only salvation.

Sarah Michelle Gellar takes on the role of Buffy Summers in this TV version of "Buffy the Vampire Slayer," based on the film of the same title, which starred Kristy Swanson. Buffy is a Slayer, one in a long line of young women chosen for a specific mission: to seek out and destroy vampires, demons and other forces of darkness. Unlike her predecessors, Buffy establishes a group of supportive friends who aids her in her battles with evil, including Willow, Xander and Cordelia. Her battles with evil are frequent, since Sunnydale, where Buffy and friends live, sits atop a gateway to the realm of the demons.