The fight to save endlings continues as Julia, Johnny, Tabby and Finn track Hewes to her Infinitum facility. When Hewes cracks open an orb releasing a dangerous creature, our heroes have no choice but to bring the fight to her.

While Johnny, Tabby and Finn wrestle with their potential futures, Julia can't leave her past behind. But when an old threat becomes new again, the group realizes that the actions they take today will determine their tomorrows.