Kaijudo: Clash of the Duel Masters

Heart of Darkness Pt. 1 (1x19)

:

Following the incident at the bank, Master Jaha, Master Chavez, and Master Nadia leads an expedition to the Darkness Civilization to rescue Allie's father and endures multiple attacks. They soon learn from Master Jaha's contact Slyth that Arthur Underhill is in the clutches of Megaria, the Collector.