With the trolls hiding out in Arcadia, AAARRRGGHH!!! goes undercover to see what Gunmar is up to. A potential rival brings out Jim's jealous side.
EP2 Arcadia's Most WantedMay 25, 2018
Toby gets caught in the crosshairs when a troll goes missing and the city cracks down on crime. An ancient voice refuses to be silenced.
EP3 Bad CoffeeMay 25, 2018
Something strange is brewing at school, where the teachers are more agitated than usual. Claire's illness shows disturbing side effects.
EP4 So I'm Dating a SorceressMay 25, 2018
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.
EP5 The Exorcism of Claire NunezMay 25, 2018
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.
EP6 Parental GuidanceMay 25, 2018
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.
EP7 The OathMay 25, 2018
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.
EP8 For the Glory of MerlinMay 25, 2018
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.
EP9 In Good HandsMay 25, 2018
Señor Uhl interrupts an important mission with an awkward ultimatum for Jim: help two new students fit in ... or face a repeat of sophomore year.
EP10 A House DividedMay 25, 2018
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.
EP11 JimhuntersMay 25, 2018
A greatly changed Jim renews his Trollhunter training but struggles to accept his new reality. Gunmar and Morgana rally the troops for an attack.
EP12 The Eternal Knight Pt. 1May 25, 2018
The Eternal Night covers Arcadia in shadow, leading to a long-awaited showdown between Gunmar and the newly transformed Trollhunter.
EP13 The Eternal Knight Pt. 2May 25, 2018
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?