An epic battle comes to a head in the darkness as Jim and his friends push back against Morgana. But without Merlin, how will they stop her?

A reluctant Jim joins forces with Strickler to keep Barbara alive. Gnome Chompsky returns from the Darklands with important news about Enrique.

With Barbara's life hanging in the balance, Jim races to break the spell that bonds her to Strickler. Angor Rot attacks Toby and Claire.

A monumental loss carries a warning from beyond the grave as Gunmar marches for Heartstone Trollmarket. Can the team pull together to save the day?

The Eternal Night covers Arcadia in shadow, leading to a long-awaited showdown between Gunmar and the newly transformed Trollhunter.

In a revealing flashback episode, Otto and Dictatious vie for Gunmar's ear while an increasingly paranoid Steve finds an unlikely ally.

Toby and Claire take on a Trollhunter task so Jim can win a Spring King challenge. In the process, they learn to master new weapons.

Merlin has a plan to go to war, but it's Jim's choice to make. Blinky and AAARRRGGHH!!! search for allies. Gunmar uses Barbara to get what he wants.

Hope springs from an unlikely source when Gunmar learns that Jim's friends are in the Darklands on a mission to bring him home.

Facing serious accusations from the Tribunal, Jim gets the chance to see what his life would be like if he'd never found the amulet.

While Gunmar searches for the Staff of Avalon, Jim and Toby head into the Shadow Realm to rescue Claire's spirit and return it to her body.

With the future of two worlds at stake, the team races to find Merlin's Tomb -- and the Staff of Avalon -- before Gunmar can get his hands on it.

Still reeling from the discovery of the amulet's power, a stunned Jim meets his new mentors and learns he's been tasked with a sacred responsibility.

The heroes launch a dangerous quest to find the first Triumbric Stone. Angor Rot concocts a charm that links Strickler and Barbara's fates.

A horde of pixies descends on Arcadia Oaks High, sending the student body into a tailspin. Angor Rot comes to Jim with a surprising proposal.

Every second counts when Jim turns to a time-stopping Kairosect to snatch Strickler's ring, save his mother and find the second Triumbric Stone.

With Jim still trapped in the Darklands searching for Enrique, his friends rally to bring him back. But the Troll Tribunal has other ideas.

Jim stands trial for unleashing Gunmar while his friends race to clear his name. If convicted, he'll be sent to "The Deep", a dark realm of no return.

As Gunmar readies to destroy Jim in the Darklands, Blinky and the gang strike a deal with the Janus Order in their quest to revive an old friend.

Toby and Darci ask Jim and Claire on a double date. Gunmar returns from his travels, now armed with the knowledge to bring forth the Eternal Night.

A greatly changed Jim renews his Trollhunter training but struggles to accept his new reality. Gunmar and Morgana rally the troops for an attack.

Señor Uhl sentences Jim and his friends to detention while Queen Usurna gathers evidence of a conspiracy. Draal comes face to face with Gunmar.

When Barbara's art obsession leads to an "aha!" moment, she demands Jim tell her the truth. Dictatious reveals Gunmar's plans to resurrect Angor Rot.

A long-dormant ally shows Jim and his friends what really happened at the Battle of Killahead. Gunmar awakens Morgana, and Angor Rot plots his revenge.

Two fateful battles unfold when Bular and Strickler order Jim to unlock the portal and free Gunmar and his Gumm-Gumm Army from the Darklands.