On Atollon, the Rebels are going through preparations for their attack on the Imperial Factory on Lothal. During the briefing, Ezra starts hearing Maul's voice calling his name. He even starts to see him in the background while no one else can. As he continues to hear and see Maul, Ezra starts to panic until eventually he passes out the moment he sees Maul right behind him. He later wakes up aboard the Ghost with his friends beside him. With everyone curious to know what was on his mind, Ezra tells them about hearing and seeing Maul. According to everyone else they did not see anyone, and Hera suspects it was some kind of Force vision. Ezra decides to get back to work despite everyone's concerns for him. When he leaves with Sabine, Hera, noticing Kanan is looking at the shattered Holocrons, asks what is on his mind. Kanan believes that whatever Ezra went through with Maul is not over yet.
Meanwhile, Ezra and Sabine are loading the Ghost with explosives, when Ezra suddenly starts to see Maul again. Believing that he is really there, he goes after him. Ezra loses sight of Maul for a moment but soon spots him and jumps him. In a rage of fury, he deploys his Lightsaber and attempts to strike Maul down, only to be stopped by Kanan and Sabine who help him see that it is not Maul but one of their fellow Rebels. The Rebel runs away in fear, leaving Ezra shaken and confused. Later, Hera heads out to carry out a mission, despite wanting to stay with Ezra after what happened earlier. But Kanan convinces her to go after telling her he had a plan, even though he did not actually have one. He did however get Sabine to place a tracker on Ezra's wrist-comm without him knowing.
Later, Kanan and Ezra go to Bendu for help. Ezra tells him about the visions and voices he has been having, to which the Bendu brings up the danger he warned them about a while back; combining the two Holocrons could bring both great wisdom and great danger. Ezra understands as he felt their power and saw things but incomplete, since he let go before either one of them got the answers they wanted. Ezra wants to know how to stop seeing Maul, and the only answer the Bendu gives him is not to turn around. Both the Jedi are puzzled by his reply, but when they do turn around they see Maul himself. The two Jedi quickly deploy their lightsabers as Maul approaches them. He assures them that he has not come for a fight but to speak with his "Apprentice". He reveals that when Ezra severed their connection with the Holocrons the information they sought got mixed up, resulting in learning a bit of what each one of them wanted to know. It also left behind fragments of memories inside their minds, which was why Maul was able to find the Rebellion's secret base. Maul wishes to take Ezra to place where they can retrieve the answers they seek, in exchange to keep the location of their base secret. Kanan says "No deal" and threatens to strike him down, only to be warned that if he does Maul will activate a beacon he planted nearby, that will reveal their location to the Empire. Not wanting to risk the base and knowing how to destroy the Sith, Ezra chooses to go with him, and despite Kanan's concerns he reluctantly allows him too. Ezra leaves Atollon with Maul, and after they take off Kanan goes back to Chopper Base. Using the tracker planted on Ezra's wrist-comm, he follows them in the Phantom with Sabine accompanying him.
Emerging from hyperspace, Ezra and Maul arrive on the planet Dathomir, and land outside the ruins of the Nightsister fortress. Maul's reason for coming to this planet is to perform some ancient magic that will conjoin their minds again and access the knowledge they both sought. They venture deep into the dark ruins of the fortress where Maul shows Ezra some treasures that he has kept over the years, including the Darksaber he wielded during his rule over Mandalore. Later, Maul brews them up a strange potion that will merge their minds again. One by one they drink it and soon after they feel the effects working. Their minds become one once again and start to see the answers they failed to gain before with the Holocrons; a desert planet with twin suns and someone who was thought to be dead. However, it is revealed too late that using the Nightsisters' magic comes with a terrible price. Maul and Ezra must pay back the spirits of the Nightsisters with their flesh. Suddenly, Kanan and Sabine show up after following them to the planet. When the Nightsister spirits see them, they attack and possess their bodies. With Kanan and Sabine under the control of the Nightsisters, they attack Ezra and Maul for their payment. Ezra and Maul escape to the cave entrance, and when they make it out the possessed Kanan and Sabine stop chasing them because the spirits of the Nightsisters cannot venture beyond the source of their power. As the possessed Kanan and Sabine crawl back into the cave, Maul is prepared to leave and proceed with his quest with Ezra by his side. But Ezra refuses to go with him and leave his friends behind. Unable to convince him, Maul leaves alone while Ezra goes back in to save Kanan and Sabine.
Ezra's plan is to get Kanan and Sabine outside the cave which he hopes will release them from the control of the Nightsister spirits. Once inside he is first attacked by Sabine armed with the Darksaber. In an aggressive and struggling fight, Ezra manages to Force push Sabine out of the cave forcing the spirit controlling her to leave her body. Ezra warns Sabine not to go back in the cave and then goes off to save Kanan. He soon finds Kanan still possessed by the Nightsisters. The spirits are furious as Maul promised them flesh and blood so they could rebuild the Nightsisters. Ezra is willing to settle that debt in exchange for Kanan's release. However, the spirits first wish to see how strong he is, by using Kanan to attack him. Ezra fights him off and tries his best not to hurt his master. After a struggling fight, Ezra finally convinces the Nightsister spirits to take him and release his master. But instead of upholding his end of the bargain, Ezra uses his lightsaber and the darksaber to destroy the spirit's source of power, destroying the Nightsister spirits in the process.
With Kanan and Sabine safe, Ezra reveals what he saw when his mind was conjoined with Maul's. He saw that Obi-Wan Kenobi was alive and had the answers on how to destroy the Sith. He also notes that Maul is looking for him as well but for another reason, and both Jedi agree if he gets to him first they might lose their chance to stop the Sith. The three of them then head back to the Phantom, but not before Sabine salvages the Darksaber.
- Taylor Gray as Ezra Bridger
- Freddie Prinze, Jr. as Kanan Jarrus
- Samuel Witwer as Darth Maul
- Dee Bradley Baker as Captain Rex
- Vanessa Marshall as Hera Syndulla
- Steven Blum as Garazeb Orrelios, Rebel Trooper #2
- Tiya Sircar as Sabine Wren
- Tom Baker as The Bendu
- Stephen Stanton as AP-5
- Meredith Salenger as Nightsister Ghost Kanan
- Anna Graves as Nightsister Ghost Sabine
- Dave Filoni as Rebel Trooper #1
- Production Numbers 311 ("An Inside Man") and 310 ("Visions and Voices") were swapped after production started, partially because of thematic connections between episodes 310 and 312.
- The Darksaber from Star Wars: The Clone Wars makes its return in this episode.
- Sabine also acquires the Darksaber. Ironically the saber belonged to the house Vizsla to which belongs the Sabine clan.