Monday's episode of Into the Badlands reminds viewers that Sunny's sister is still important to the show. It was revealed earlier in the season that Sunny (Daniel Wu) has a sister somewhere in the Badlands, but no one, including Sunny himself, has any knowledge of her whereabouts.

The latest episode of the AMC series, "Cobra Fang, Panther Claw," sees the main characters become sidetracked from their mission to defeat Pilgrim (Babou Ceesay). The Widow (Emily Beecham) and Nix (Ella-Rae Smith) team up to rescue the Widow's friends and finally put an end to the war with Baron Chau (Eleanor Matsuura). Meanwhile, the Black Lotus, led by Magnus (Francis Magee), finally catch up to Ankara (Clara Higgins). Despite being protected by both Sunny and Bajie (Nick Frost), Ankara was viciously murdered by Magnus, who also stabbed Bajie in the chest.

Related: Exclusive Into the Badlands Clip: Sunny Versus the Black Lotus

Before her death, Ankara tells Sunny and Bajie the truth about the fall of Azra. Ankara confesses that it was her fault that the Black Lotus found the city. She also mentions that there were only a few survivors: Sunny, his sister, and Pilgrim. The mystery of Sunny's sister hasn't received much attention in recent episodes, but the brief reference to her in "Cobra, Fang, Panther Claw" serves as a reminder to viewers that answers are still coming. With only four episodes remaining in Into the Badlands' third and final season, fans won't have to wait much longer for this storyline to reach a resolution. Synopses for upcoming episodes confirm that Sunny's sister, Kannin, will arrive soon, played by Eugenia Yuan.

Earlier in the season, Sunny learned more details about his childhood from an encounter with the River King. He was on a boat that was attacked by the Black Lotus. Nearly everyone on board was massacred. One survivor, the boat captain, revealed to Sunny that he had a sister. He described her as Sunny's "guardian angel," who protected him from the Black Lotus.

Later, when Pilgrim was trying to convince Sunny to join forces with him, he explained that in their youth, they were both "chosen sons" of Azra. According to Pilgrim, it was Sunny and his sister, Kannin, who helped him escape Azra when the Black Lotus sacked the city and burned it to the ground. Pilgrim told Sunny that he didn't know what became of her after Azra's fall.

If the fight with the Black Lotus was the last time anyone saw Kannin, it could mean that the cult had something to do with her disappearance. Sunny's best chance of finding out what happened to Kannin will come when he faces off against Magnus.

More: Why Into The Badlands Was Cancelled (Despite Being Amazing)