| 1: Terra Incognita, Part 1 |
| Dec 21, 2018 |
| When their planet's monarchy is overthrown by a coup, royal alien teens Aja and Krel flee to Earth accompanied by their brutish bodyguard. |
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| 1: Terra Incognita, Part 1 |
| Dec 21, 2018 |
| When their planet's monarchy is overthrown by a coup, royal alien teens Aja and Krel flee to Earth accompanied by their brutish bodyguard. |
| 2: Terra Incognita, Part 2 |
| Dec 21, 2018 |
| After crash-landing in the town of Arcadia, the royals -- now disguised as humans -- search for suitable technology to power their ship. |
| 3: Mind Over Matter |
| Dec 21, 2018 |
| Krel builds a mind-reading device in hopes of blending in with humans. Elsewhere, General Morando dispatches bounty hunters to track down the royals. |
| 4: Beetle Mania |
| Dec 21, 2018 |
| Royal super-fan Stuart offers to help eradicate an alien beetle infestation before it exposes the siblings' true identities. |
| 5: Collision Course |
| Dec 21, 2018 |
| The royals take a driver’s ed class, hoping to find parts for their ship. Instead, they're led on a high-speed chase with the Zeron Brotherhood! |
| 6: D'aja Vu |
| Dec 21, 2018 |
| A giant troll wreaks havoc at the school science fair, threatening to expose both the troll world -- and the royals’ true identities. |
| 7: Flying the Coop |
| Dec 21, 2018 |
| Aja and Krel are summoned by the school board to produce proper identification. Zadra discovers the identity of the traitor who aided the coup. |
| 8: Party Crashers |
| Dec 21, 2018 |
| An incoming message from Akiridion-5 alarms Vex. Meanwhile, the arrival of bounty hunters ruins the royals' outing in the woods with friends. |
| 9: Lightning in a Bottle |
| Dec 21, 2018 |
| The royal heirs look for Aja's missing serrator in the forest, where they mistake Trollhunter Jim Lake's Amulet of Daylight for her lost weapon. |
| 10: The Arcadian Job |
| Dec 21, 2018 |
| In a daring heist, the royals and Stuart infiltrate a high-security military base in hopes of stealing the final part to power the mothership. |
| 11: Truth Be Told |
| Dec 21, 2018 |
| Aja decides to tell Steve she’s actually an alien, but her confession is cut short by a visit from the Zeron Brotherhood. |
| 12: Last Night on Earth |
| Dec 21, 2018 |
| The royals celebrate their last day of school -- and on Earth -- with friends, but Zadra's arrival with revelations of betrayal shakes them to the core. |
| 13: Bad Omen |
| Dec 21, 2018 |
| Alpha unleashes a barrage of attacks on the siblings, enabling Omen to hijack the ship and take the royal cores. Will this be the end of House Tarron? |